21022112220010 has 64 divisors (see below), whose sum is σ = 41761165386240. Its totient is φ = 7555332026880.

The previous prime is 21022112219989. The next prime is 21022112220023. The reversal of 21022112220010 is 1002221122012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22879024 + ... + 23780116.

It is an arithmetic number, because the mean of its divisors is an integer number (652518209160).

Almost surely, 2^{21022112220010} is an apocalyptic number.

21022112220010 is a deficient number, since it is larger than the sum of its proper divisors (20739053166230).

21022112220010 is a wasteful number, since it uses less digits than its factorization.

21022112220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903583.

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

Adding to 21022112220010 its reverse (1002221122012), we get a palindrome (22024333342022).

It can be divided in two parts, 2102 and 2112220010, that added together give a palindrome (2112222112).

The spelling of 21022112220010 in words is "twenty-one trillion, twenty-two billion, one hundred twelve million, two hundred twenty thousand, ten".