2021020011122 has 16 divisors (see below), whose sum is σ = 3668406071040. Its totient is φ = 815201348928.

The previous prime is 2021020011121. The next prime is 2021020011133. The reversal of 2021020011122 is 2211100201202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2021020011097 and 2021020011106.

It is not an unprimeable number, because it can be changed into a prime (2021020011121) 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, 4245840122 + ... + 4245840597.

It is an arithmetic number, because the mean of its divisors is an integer number (229275379440).

Almost surely, 2^{2021020011122} is an apocalyptic number.

2021020011122 is a deficient number, since it is larger than the sum of its proper divisors (1647386059918).

2021020011122 is a wasteful number, since it uses less digits than its factorization.

2021020011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491680745.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021020011122 its reverse (2211100201202), we get a palindrome (4232120212324).

The spelling of 2021020011122 in words is "two trillion, twenty-one billion, twenty million, eleven thousand, one hundred twenty-two".