2021111022 has 32 divisors (see below), whose sum is σ = 4621478400. Its totient is φ = 577235808.

The previous prime is 2021110981. The next prime is 2021111041. The reversal of 2021111022 is 2201111202.

It is a junction number, because it is equal to n+sod(n) for n = 2021110989 and 2021111007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121504 + ... + 137132.

It is an arithmetic number, because the mean of its divisors is an integer number (144421200).

Almost surely, 2^2021111022 is an apocalyptic number.

2021111022 is an abundant number, since it is smaller than the sum of its proper divisors (2600367378).

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

2021111022 is a wasteful number, since it uses less digits than its factorization.

2021111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18720.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2021111022 is about 44956.7683669545. The cubic root of 2021111022 is about 1264.3385799009.

Adding to 2021111022 its reverse (2201111202), we get a palindrome (4222222224).

The spelling of 2021111022 in words is "two billion, twenty-one million, one hundred eleven thousand, twenty-two".