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20122231210033 = 389207953248749
BaseRepresentation
bin1001001001101000100100…
…11100011000000000110001
32122020122222220001022220211
410210310102130120000301
510114140312142210113
6110444005253104121
74144532435121541
oct444642234300061
978218886038824
1020122231210033
116458876a29297
12230b9a6628041
13b2c697809414
144d7cc7a47321
1524d65ab70b3d
hex124d12718031

20122231210033 has 8 divisors (see below), whose sum is σ = 20174137425000. Its totient is φ = 20070325909248.

The previous prime is 20122231210019. The next prime is 20122231210087. The reversal of 20122231210033 is 33001213222102.

It can be written as a sum of positive squares in 4 ways, for example, as 1934121588529 + 18188109621504 = 1390727^2 + 4264752^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20122231210033 - 213 = 20122231201841 is a prime.

It is a super-2 number, since 2×201222312100332 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122231209986 and 20122231210013.

It is not an unprimeable number, because it can be changed into a prime (20122231213033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80769343 + ... + 81018091.

It is an arithmetic number, because the mean of its divisors is an integer number (2521767178125).

Almost surely, 220122231210033 is an apocalyptic number.

It is an amenable number.

20122231210033 is a deficient number, since it is larger than the sum of its proper divisors (51906214967).

20122231210033 is a wasteful number, since it uses less digits than its factorization.

20122231210033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457091.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20122231210033 its reverse (33001213222102), we get a palindrome (53123444432135).

The spelling of 20122231210033 in words is "twenty trillion, one hundred twenty-two billion, two hundred thirty-one million, two hundred ten thousand, thirty-three".

Divisors: 1 389 207953 248749 80893717 96763361 51728100797 20122231210033