122200021002000 has 80 divisors (see below), whose sum is σ = 393972867729792. Its totient is φ = 32586672265600.

The previous prime is 122200021001983. The next prime is 122200021002001. The reversal of 122200021002000 is 200120002221.

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 (12).

It is not an unprimeable number, because it can be changed into a prime (122200021002001) 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, 10183329084 + ... + 10183341083.

Almost surely, 2^{122200021002000} is an apocalyptic number.

122200021002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122200021002000 is an abundant number, since it is smaller than the sum of its proper divisors (271772846727792).

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

122200021002000 is a wasteful number, since it uses less digits than its factorization.

122200021002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20366670193 (or 20366670177 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 122200021002000 its reverse (200120002221), we get a palindrome (122400141004221).

The spelling of 122200021002000 in words is "one hundred twenty-two trillion, two hundred billion, twenty-one million, two thousand".