21222101112010 has 16 divisors (see below), whose sum is σ = 38309867834976. Its totient is φ = 8464376926288.

The previous prime is 21222101112007. The next prime is 21222101112053. The reversal of 21222101112010 is 1021110122212.

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, 3057936172 + ... + 3057943111.

It is an arithmetic number, because the mean of its divisors is an integer number (2394366739686).

Almost surely, 2^{21222101112010} is an apocalyptic number.

21222101112010 is a deficient number, since it is larger than the sum of its proper divisors (17087766722966).

21222101112010 is a wasteful number, since it uses less digits than its factorization.

21222101112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6115879637.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21222101112010 its reverse (1021110122212), we get a palindrome (22243211234222).

The spelling of 21222101112010 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred one million, one hundred twelve thousand, ten".