122951949012 has 18 divisors (see below), whose sum is σ = 310795204538. Its totient is φ = 40983982992.

The previous prime is 122951949011. The next prime is 122951949037. The reversal of 122951949012 is 210949159221.

122951949012 is a `hidden beast` number, since 12 + 29 + 519 + 4 + 90 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 93558903876 + 29393045136 = 305874^2 + 171444^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×122951949012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122951949011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1707665923 + ... + 1707665994.

Almost surely, 2^122951949012 is an apocalyptic number.

122951949012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122951949012 is an abundant number, since it is smaller than the sum of its proper divisors (187843255526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122951949012 is a wasteful number, since it uses less digits than its factorization.

122951949012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415331927 (or 3415331922 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 122951949012 in words is "one hundred twenty-two billion, nine hundred fifty-one million, nine hundred forty-nine thousand, twelve".