21200110001022 has 32 divisors (see below), whose sum is σ = 44485476747264. Its totient is φ = 6726634581600.

The previous prime is 21200110000997. The next prime is 21200110001033. The reversal of 21200110001022 is 22010001100212.

It is a junction number, because it is equal to n+sod(n) for n = 21200110000989 and 21200110001007.

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, 934243458 + ... + 934266149.

It is an arithmetic number, because the mean of its divisors is an integer number (1390171148352).

Almost surely, 2^{21200110001022} is an apocalyptic number.

21200110001022 is an abundant number, since it is smaller than the sum of its proper divisors (23285366746242).

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

21200110001022 is a wasteful number, since it uses less digits than its factorization.

21200110001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868509704.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21200110001022 its reverse (22010001100212), we get a palindrome (43210111101234).

The spelling of 21200110001022 in words is "twenty-one trillion, two hundred billion, one hundred ten million, one thousand, twenty-two".