21200200022 has 16 divisors (see below), whose sum is σ = 32449578480. Its totient is φ = 10384282272.

The previous prime is 21200199983. The next prime is 21200200031. The reversal of 21200200022 is 22000200212.

It is a junction number, because it is equal to n+sod(n) for n = 21200199976 and 21200200012.

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, 81893 + ... + 221600.

It is an arithmetic number, because the mean of its divisors is an integer number (2028098655).

Almost surely, 2^21200200022 is an apocalyptic number.

21200200022 is a deficient number, since it is larger than the sum of its proper divisors (11249378458).

21200200022 is a wasteful number, since it uses less digits than its factorization.

21200200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304207.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 21200200022 its reverse (22000200212), we get a palindrome (43200400234).

The spelling of 21200200022 in words is "twenty-one billion, two hundred million, two hundred thousand, twenty-two".