21100202021022 has 8 divisors (see below), whose sum is σ = 42200404042056. Its totient is φ = 7033400673672.

The previous prime is 21100202020901. The next prime is 21100202021023. The reversal of 21100202021022 is 22012020200112.

It is a sphenic number, since it is the product of 3 distinct primes.

21100202021022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21100202020992 and 21100202021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100202021023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758350168413 + ... + 1758350168424.

It is an arithmetic number, because the mean of its divisors is an integer number (5275050505257).

Almost surely, 2^{21100202021022} is an apocalyptic number.

21100202021022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21100202021022 is a wasteful number, since it uses less digits than its factorization.

21100202021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516700336842.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21100202021022 its reverse (22012020200112), we get a palindrome (43112222221134).

The spelling of 21100202021022 in words is "twenty-one trillion, one hundred billion, two hundred two million, twenty-one thousand, twenty-two".