21112222202110 has 32 divisors (see below), whose sum is σ = 40953990913920. Its totient is φ = 7789803913728.

The previous prime is 21112222202107. The next prime is 21112222202179. The reversal of 21112222202110 is 1120222221112.

It is a super-2 number, since 2×21112222202110² (a number of 27 digits) contains 22 as substring.

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, 56878155 + ... + 57248134.

It is an arithmetic number, because the mean of its divisors is an integer number (1279812216060).

Almost surely, 2^{21112222202110} is an apocalyptic number.

21112222202110 is a deficient number, since it is larger than the sum of its proper divisors (19841768711810).

21112222202110 is a wasteful number, since it uses less digits than its factorization.

21112222202110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114127732.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21112222202110 its reverse (1120222221112), we get a palindrome (22232444423222).

The spelling of 21112222202110 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, two hundred two thousand, one hundred ten".