2021022222000 has 80 divisors (see below), whose sum is σ = 6515775663072. Its totient is φ = 538939257600.

The previous prime is 2021022221891. The next prime is 2021022222001. The reversal of 2021022222000 is 2222201202.

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 (15).

It is not an unprimeable number, because it can be changed into a prime (2021022222001) 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, 168412519 + ... + 168424518.

Almost surely, 2^{2021022222000} is an apocalyptic number.

2021022222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021022222000 is an abundant number, since it is smaller than the sum of its proper divisors (4494753441072).

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

2021022222000 is a wasteful number, since it uses less digits than its factorization.

2021022222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336837063 (or 336837047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2021022222000 its reverse (2222201202), we get a palindrome (2023244423202).

The spelling of 2021022222000 in words is "two trillion, twenty-one billion, twenty-two million, two hundred twenty-two thousand".