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122012412231 = 3371915755031
BaseRepresentation
bin111000110100010000…
…0011010100101000111
3102122221020212202002210
41301220200122211013
53444340134142411
6132015101234503
711546403251313
oct1615040324507
9378836782083
10122012412231
114782190a226
121b791862a33
13b6760b9238
145c96712b43
1532919baca6
hex1c6881a947

122012412231 has 16 divisors (see below), whose sum is σ = 167954853888. Its totient is φ = 78728810400.

The previous prime is 122012412217. The next prime is 122012412239. The reversal of 122012412231 is 132214210221.

It is a happy number.

It is not a de Polignac number, because 122012412231 - 25 = 122012412199 is a prime.

It is a super-2 number, since 2×1220124122312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122012412198 and 122012412207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012412239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2856315 + ... + 2898716.

It is an arithmetic number, because the mean of its divisors is an integer number (10497178368).

Almost surely, 2122012412231 is an apocalyptic number.

122012412231 is a deficient number, since it is larger than the sum of its proper divisors (45942441657).

122012412231 is a wasteful number, since it uses less digits than its factorization.

122012412231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755262.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 122012412231 its reverse (132214210221), we get a palindrome (254226622452).

The spelling of 122012412231 in words is "one hundred twenty-two billion, twelve million, four hundred twelve thousand, two hundred thirty-one".

Divisors: 1 3 37 111 191 573 7067 21201 5755031 17265093 212936147 638808441 1099210921 3297632763 40670804077 122012412231