2021121192 has 32 divisors (see below), whose sum is σ = 5060486880. Its totient is φ = 672682560.

The previous prime is 2021121191. The next prime is 2021121209. The reversal of 2021121192 is 2911211202.

It is not an unprimeable number, because it can be changed into a prime (2021121191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47838 + ... + 79565.

It is an arithmetic number, because the mean of its divisors is an integer number (158140215).

Almost surely, 2^2021121192 is an apocalyptic number.

It is an amenable number.

2021121192 is an abundant number, since it is smaller than the sum of its proper divisors (3039365688).

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

2021121192 is a wasteful number, since it uses less digits than its factorization.

2021121192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128073 (or 128069 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2021121192 is about 44956.8814754760. The cubic root of 2021121192 is about 1264.3407005665.

Adding to 2021121192 its reverse (2911211202), we get a palindrome (4932332394).

The spelling of 2021121192 in words is "two billion, twenty-one million, one hundred twenty-one thousand, one hundred ninety-two".