20202002021111 has 32 divisors (see below), whose sum is σ = 21391307136000. Its totient is φ = 19025736492672.

The previous prime is 20202002021099. The next prime is 20202002021137. The reversal of 20202002021111 is 11112020020202.

It is a cyclic number.

It is not a de Polignac number, because 20202002021111 - 2³⁴ = 20184822151927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202002021141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3161994305 + ... + 3162000693.

It is an arithmetic number, because the mean of its divisors is an integer number (668478348000).

Almost surely, 2^{20202002021111} is an apocalyptic number.

20202002021111 is a deficient number, since it is larger than the sum of its proper divisors (1189305114889).

20202002021111 is a wasteful number, since it uses less digits than its factorization.

20202002021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151.

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

Adding to 20202002021111 its reverse (11112020020202), we get a palindrome (31314022041313).

The spelling of 20202002021111 in words is "twenty trillion, two hundred two billion, two million, twenty-one thousand, one hundred eleven".