121010122000 has 80 divisors (see below), whose sum is σ = 292678588800. Its totient is φ = 48391459200.

The previous prime is 121010121989. The next prime is 121010122027. The reversal of 121010122000 is 221010121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13353471 + ... + 13362529.

It is an arithmetic number, because the mean of its divisors is an integer number (3658482360).

Almost surely, 2^121010122000 is an apocalyptic number.

121010122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010122000 is an abundant number, since it is smaller than the sum of its proper divisors (171668466800).

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

121010122000 is an equidigital number, since it uses as much as digits as its factorization.

121010122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15761 (or 15745 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121010122000 its reverse (221010121), we get a palindrome (121231132121).

The spelling of 121010122000 in words is "one hundred twenty-one billion, ten million, one hundred twenty-two thousand".