21022220110202 has 16 divisors (see below), whose sum is σ = 31558906368000. Its totient is φ = 10502585136720.

The previous prime is 21022220110189. The next prime is 21022220110217. The reversal of 21022220110202 is 20201102222012.

It is a happy number.

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, 105753299 + ... + 105951897.

It is an arithmetic number, because the mean of its divisors is an integer number (1972431648000).

Almost surely, 2^{21022220110202} is an apocalyptic number.

21022220110202 is a deficient number, since it is larger than the sum of its proper divisors (10536686257798).

21022220110202 is a wasteful number, since it uses less digits than its factorization.

21022220110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241261.

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

Adding to 21022220110202 its reverse (20201102222012), we get a palindrome (41223322332214).

The spelling of 21022220110202 in words is "twenty-one trillion, twenty-two billion, two hundred twenty million, one hundred ten thousand, two hundred two".