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22121242010033 = 23961793130871
BaseRepresentation
bin1010000011110100000001…
…10001011010000110110001
32220022202210101112121120212
411001322000301122012301
510344413300423310113
6115014205220113505
74442130666426605
oct501720061320661
986282711477525
1022121242010033
117059625462511
1225932b3235895
13c4604114533a
14566960d9b505
15285656da20a8
hex141e80c5a1b1

22121242010033 has 4 divisors (see below), whose sum is σ = 23083035140928. Its totient is φ = 21159448879140.

The previous prime is 22121242009963. The next prime is 22121242010039. The reversal of 22121242010033 is 33001024212122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22121242010033 - 232 = 22116947042737 is a prime.

It is a super-2 number, since 2×221212420100332 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 961793130871 = 22121242010033 / (2 + 2 + 1 + 2 + 1 + 2 + 4 + 2 + 0 + 1 + 0 + 0 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22121242009990 and 22121242010008.

It is not an unprimeable number, because it can be changed into a prime (22121242010039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480896565413 + ... + 480896565458.

It is an arithmetic number, because the mean of its divisors is an integer number (5770758785232).

Almost surely, 222121242010033 is an apocalyptic number.

22121242010033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22121242010033 is a deficient number, since it is larger than the sum of its proper divisors (961793130895).

22121242010033 is an equidigital number, since it uses as much as digits as its factorization.

22121242010033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961793130894.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22121242010033 its reverse (33001024212122), we get a palindrome (55122266222155).

The spelling of 22121242010033 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred forty-two million, ten thousand, thirty-three".

Divisors: 1 23 961793130871 22121242010033