20121102202210 has 32 divisors (see below), whose sum is σ = 36234463795200. Its totient is φ = 8044779217728.

The previous prime is 20121102202207. The next prime is 20121102202277. The reversal of 20121102202210 is 1220220112102.

It is a happy number.

It is a super-2 number, since 2×20121102202210² (a number of 27 digits) contains 22 as substring.

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, 433630591 + ... + 433676989.

It is an arithmetic number, because the mean of its divisors is an integer number (1132326993600).

Almost surely, 2^{20121102202210} is an apocalyptic number.

20121102202210 is a deficient number, since it is larger than the sum of its proper divisors (16113361592990).

20121102202210 is a wasteful number, since it uses less digits than its factorization.

20121102202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65202.

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

Adding to 20121102202210 its reverse (1220220112102), we get a palindrome (21341322314312).

The spelling of 20121102202210 in words is "twenty trillion, one hundred twenty-one billion, one hundred two million, two hundred two thousand, two hundred ten".