2021200912 has 10 divisors (see below), whose sum is σ = 3916076798. Its totient is φ = 1010600448.

The previous prime is 2021200879. The next prime is 2021200913. The reversal of 2021200912 is 2190021202.

It can be written as a sum of positive squares in only one way, i.e., 1717605136 + 303595776 = 41444^2 + 17424^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2021200912.

It is not an unprimeable number, because it can be changed into a prime (2021200913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63162513 + ... + 63162544.

Almost surely, 2^2021200912 is an apocalyptic number.

It is an amenable number.

2021200912 is a deficient number, since it is larger than the sum of its proper divisors (1894875886).

2021200912 is a wasteful number, since it uses less digits than its factorization.

2021200912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126325065 (or 126325059 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2021200912 is about 44957.7680940680. The cubic root of 2021200912 is about 1264.3573236692.

The spelling of 2021200912 in words is "two billion, twenty-one million, two hundred thousand, nine hundred twelve".