21200211210022 has 32 divisors (see below), whose sum is σ = 34274453052672. Its totient is φ = 9776726478624.

The previous prime is 21200211210001. The next prime is 21200211210043. The reversal of 21200211210022 is 22001211200212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21200211210001) and next prime (21200211210043).

It is a junction number, because it is equal to n+sod(n) for n = 21200211209978 and 21200211210005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380156313 + ... + 380212075.

It is an arithmetic number, because the mean of its divisors is an integer number (1071076657896).

Almost surely, 2^{21200211210022} is an apocalyptic number.

21200211210022 is a deficient number, since it is larger than the sum of its proper divisors (13074241842650).

21200211210022 is a wasteful number, since it uses less digits than its factorization.

21200211210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67452.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21200211210022 its reverse (22001211200212), we get a palindrome (43201422410234).

The spelling of 21200211210022 in words is "twenty-one trillion, two hundred billion, two hundred eleven million, two hundred ten thousand, twenty-two".