21100200211022 has 4 divisors (see below), whose sum is σ = 31650300316536. Its totient is φ = 10550100105510.

The previous prime is 21100200210899. The next prime is 21100200211031. The reversal of 21100200211022 is 22011200200112.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 21100200210988 and 21100200211006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275050052754 + ... + 5275050052757.

It is an arithmetic number, because the mean of its divisors is an integer number (7912575079134).

Almost surely, 2^{21100200211022} is an apocalyptic number.

21100200211022 is a deficient number, since it is larger than the sum of its proper divisors (10550100105514).

21100200211022 is a wasteful number, since it uses less digits than its factorization.

21100200211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550100105513.

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

Adding to 21100200211022 its reverse (22011200200112), we get a palindrome (43111400411134).

The spelling of 21100200211022 in words is "twenty-one trillion, one hundred billion, two hundred million, two hundred eleven thousand, twenty-two".