2021112202 has 4 divisors (see below), whose sum is σ = 3031668306. Its totient is φ = 1010556100.

The previous prime is 2021112169. The next prime is 2021112209. The reversal of 2021112202 is 2022111202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1843929481 + 177182721 = 42941^2 + 13311^2 .

It is not an unprimeable number, because it can be changed into a prime (2021112209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505278049 + ... + 505278052.

Almost surely, 2^2021112202 is an apocalyptic number.

2021112202 is a deficient number, since it is larger than the sum of its proper divisors (1010556104).

2021112202 is a wasteful number, since it uses less digits than its factorization.

2021112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010556103.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2021112202 is about 44956.7814906717. The cubic root of 2021112202 is about 1264.3388259569.

Adding to 2021112202 its reverse (2022111202), we get a palindrome (4043223404).

The spelling of 2021112202 in words is "two billion, twenty-one million, one hundred twelve thousand, two hundred two".