20211100021022 has 4 divisors (see below), whose sum is σ = 30316650031536. Its totient is φ = 10105550010510.

The previous prime is 20211100021003. The next prime is 20211100021081. The reversal of 20211100021022 is 22012000111202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20211100020988 and 20211100021006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052775005254 + ... + 5052775005257.

It is an arithmetic number, because the mean of its divisors is an integer number (7579162507884).

Almost surely, 2^{20211100021022} is an apocalyptic number.

20211100021022 is a deficient number, since it is larger than the sum of its proper divisors (10105550010514).

20211100021022 is a wasteful number, since it uses less digits than its factorization.

20211100021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105550010513.

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

Adding to 20211100021022 its reverse (22012000111202), we get a palindrome (42223100132224).

The spelling of 20211100021022 in words is "twenty trillion, two hundred eleven billion, one hundred million, twenty-one thousand, twenty-two".