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22221211201001 = 30772381795443
BaseRepresentation
bin1010000110101110001110…
…11001100110110111101001
32220200022211102012200210022
411003113013121212313221
510403033020031413001
6115132141122530225
74452300220510061
oct503270731466751
986608742180708
1022221211201001
117097a654652aa
1225aa752806975
13c525b3458787
1456b725cbc3a1
1528805855311b
hex1435c7666de9

22221211201001 has 4 divisors (see below), whose sum is σ = 22293592996752. Its totient is φ = 22148829405252.

The previous prime is 22221211200977. The next prime is 22221211201003. The reversal of 22221211201001 is 10010211212222.

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 22221211201001 - 214 = 22221211184617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221211201003) 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, 36190897415 + ... + 36190898028.

It is an arithmetic number, because the mean of its divisors is an integer number (5573398249188).

Almost surely, 222221211201001 is an apocalyptic number.

It is an amenable number.

22221211201001 is a deficient number, since it is larger than the sum of its proper divisors (72381795751).

22221211201001 is an equidigital number, since it uses as much as digits as its factorization.

22221211201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72381795750.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22221211201001 its reverse (10010211212222), we get a palindrome (32231422413223).

The spelling of 22221211201001 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred one thousand, one".

Divisors: 1 307 72381795443 22221211201001