21100100122022 has 16 divisors (see below), whose sum is σ = 32422315090032. Its totient is φ = 10292665092480.

The previous prime is 21100100122019. The next prime is 21100100122093. The reversal of 21100100122022 is 22022100100112.

It is a junction number, because it is equal to n+sod(n) for n = 21100100121988 and 21100100122006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13369193 + ... + 14863899.

It is an arithmetic number, because the mean of its divisors is an integer number (2026394693127).

Almost surely, 2^{21100100122022} is an apocalyptic number.

21100100122022 is a deficient number, since it is larger than the sum of its proper divisors (11322214968010).

21100100122022 is a wasteful number, since it uses less digits than its factorization.

21100100122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666903.

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

Adding to 21100100122022 its reverse (22022100100112), we get a palindrome (43122200222134).

The spelling of 21100100122022 in words is "twenty-one trillion, one hundred billion, one hundred million, one hundred twenty-two thousand, twenty-two".