122123021200 has 60 divisors (see below), whose sum is σ = 296249207488. Its totient is φ = 48374928000.

The previous prime is 122123021197. The next prime is 122123021231. The reversal of 122123021200 is 2120321221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1440876 + ... + 1523275.

Almost surely, 2^122123021200 is an apocalyptic number.

122123021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122123021200 is an abundant number, since it is smaller than the sum of its proper divisors (174126186288).

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

122123021200 is a wasteful number, since it uses less digits than its factorization.

122123021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964272 (or 2964261 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 122123021200 its reverse (2120321221), we get a palindrome (124243342421).

The spelling of 122123021200 in words is "one hundred twenty-two billion, one hundred twenty-three million, twenty-one thousand, two hundred".