20021100020022 has 16 divisors (see below), whose sum is σ = 40090618671552. Its totient is φ = 6665630234760.

The previous prime is 20021100020021. The next prime is 20021100020029. The reversal of 20021100020022 is 22002000112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021100020021) 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, 2017437604 + ... + 2017447527.

It is an arithmetic number, because the mean of its divisors is an integer number (2505663666972).

Almost surely, 2^{20021100020022} is an apocalyptic number.

20021100020022 is an abundant number, since it is smaller than the sum of its proper divisors (20069518651530).

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

20021100020022 is a wasteful number, since it uses less digits than its factorization.

20021100020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034885963.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20021100020022 its reverse (22002000112002), we get a palindrome (42023100132024).

The spelling of 20021100020022 in words is "twenty trillion, twenty-one billion, one hundred million, twenty thousand, twenty-two".