122129620896 has 48 divisors (see below), whose sum is σ = 337463431200. Its totient is φ = 38567248128.

The previous prime is 122129620841. The next prime is 122129620897. The reversal of 122129620896 is 698026921221.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (122129620897) 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, 33476691 + ... + 33480338.

It is an arithmetic number, because the mean of its divisors is an integer number (7030488150).

Almost surely, 2^122129620896 is an apocalyptic number.

122129620896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122129620896 is an abundant number, since it is smaller than the sum of its proper divisors (215333810304).

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

122129620896 is a wasteful number, since it uses less digits than its factorization.

122129620896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66957061 (or 66957053 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 122129620896 in words is "one hundred twenty-two billion, one hundred twenty-nine million, six hundred twenty thousand, eight hundred ninety-six".