22121102200210 has 128 divisors (see below), whose sum is σ = 43371797382144. Its totient is φ = 8075001507840.

The previous prime is 22121102200189. The next prime is 22121102200229. The reversal of 22121102200210 is 1200220112122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2455985527 + ... + 2455994533.

It is an arithmetic number, because the mean of its divisors is an integer number (338842167048).

Almost surely, 2^{22121102200210} is an apocalyptic number.

22121102200210 is a deficient number, since it is larger than the sum of its proper divisors (21250695181934).

22121102200210 is a wasteful number, since it uses less digits than its factorization.

22121102200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9828.

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

Adding to 22121102200210 its reverse (1200220112122), we get a palindrome (23321322312332).

The spelling of 22121102200210 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, two hundred thousand, two hundred ten".