20211100021122 has 16 divisors (see below), whose sum is σ = 40436201531712. Its totient is φ = 6734699758800.

The previous prime is 20211100021081. The next prime is 20211100021127. The reversal of 20211100021122 is 22112000111202.

It is a super-3 number, since 3×20211100021122³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20211100021127) 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, 583376629 + ... + 583411272.

It is an arithmetic number, because the mean of its divisors is an integer number (2527262595732).

Almost surely, 2^{20211100021122} is an apocalyptic number.

20211100021122 is an abundant number, since it is smaller than the sum of its proper divisors (20225101510590).

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

20211100021122 is a wasteful number, since it uses less digits than its factorization.

20211100021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166790793.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20211100021122 its reverse (22112000111202), we get a palindrome (42323100132324).

The spelling of 20211100021122 in words is "twenty trillion, two hundred eleven billion, one hundred million, twenty-one thousand, one hundred twenty-two".