21022211202200 has 96 divisors (see below), whose sum is σ = 52693664368800. Its totient is φ = 7753600143360.

The previous prime is 21022211202199. The next prime is 21022211202271. The reversal of 21022211202200 is 220211222012.

It is a happy number.

21022211202200 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2009657 + ... + 6788456.

It is an arithmetic number, because the mean of its divisors is an integer number (548892337175).

Almost surely, 2^{21022211202200} is an apocalyptic number.

21022211202200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022211202200 is an abundant number, since it is smaller than the sum of its proper divisors (31671453166600).

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

21022211202200 is a wasteful number, since it uses less digits than its factorization.

21022211202200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799061 (or 8799052 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21022211202200 its reverse (220211222012), we get a palindrome (21242422424212).

The spelling of 21022211202200 in words is "twenty-one trillion, twenty-two billion, two hundred eleven million, two hundred two thousand, two hundred".