21100211012022 has 16 divisors (see below), whose sum is σ = 42306720321072. Its totient is φ = 7015687287840.

The previous prime is 21100211011987. The next prime is 21100211012107. The reversal of 21100211012022 is 22021011200112.

It is a junction number, because it is equal to n+sod(n) for n = 21100211011992 and 21100211012010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4429093129 + ... + 4429097892.

It is an arithmetic number, because the mean of its divisors is an integer number (2644170020067).

Almost surely, 2^{21100211012022} is an apocalyptic number.

21100211012022 is an abundant number, since it is smaller than the sum of its proper divisors (21206509309050).

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

21100211012022 is a wasteful number, since it uses less digits than its factorization.

21100211012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8858191423.

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

Adding to 21100211012022 its reverse (22021011200112), we get a palindrome (43121222212134).

The spelling of 21100211012022 in words is "twenty-one trillion, one hundred billion, two hundred eleven million, twelve thousand, twenty-two".