2021202000156 has 12 divisors (see below), whose sum is σ = 4716138000392. Its totient is φ = 673734000048.

The previous prime is 2021202000143. The next prime is 2021202000157. The reversal of 2021202000156 is 6510002021202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021202000157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84216749995 + ... + 84216750018.

Almost surely, 2^{2021202000156} is an apocalyptic number.

It is an amenable number.

2021202000156 is an abundant number, since it is smaller than the sum of its proper divisors (2694936000236).

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

2021202000156 is a wasteful number, since it uses less digits than its factorization.

2021202000156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168433500020 (or 168433500018 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 2021202000156 its reverse (6510002021202), we get a palindrome (8531204021358).

The spelling of 2021202000156 in words is "two trillion, twenty-one billion, two hundred two million, one hundred fifty-six", and thus it is an aban number.