21100202011022 has 16 divisors (see below), whose sum is σ = 31741913560752. Its totient is φ = 10519567829760.

The previous prime is 21100202010991. The next prime is 21100202011027. The reversal of 21100202011022 is 22011020200112.

It is a junction number, because it is equal to n+sod(n) for n = 21100202010988 and 21100202011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100202011027) 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, 10687772 + ... + 12507152.

It is an arithmetic number, because the mean of its divisors is an integer number (1983869597547).

Almost surely, 2^{21100202011022} is an apocalyptic number.

21100202011022 is a deficient number, since it is larger than the sum of its proper divisors (10641711549730).

21100202011022 is a wasteful number, since it uses less digits than its factorization.

21100202011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836163.

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

Adding to 21100202011022 its reverse (22011020200112), we get a palindrome (43111222211134).

The spelling of 21100202011022 in words is "twenty-one trillion, one hundred billion, two hundred two million, eleven thousand, twenty-two".