12211121022210 has 96 divisors (see below), whose sum is σ = 34907897935872. Its totient is φ = 2936962506240.

The previous prime is 12211121022187. The next prime is 12211121022277. The reversal of 12211121022210 is 1222012111221.

12211121022210 is a `hidden beast` number, since 1 + 221 + 1 + 1 + 210 + 22 + 210 = 666.

12211121022210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211121022210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48435159 + ... + 48686618.

It is an arithmetic number, because the mean of its divisors is an integer number (363623936832).

Almost surely, 2^{12211121022210} is an apocalyptic number.

12211121022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211121022210 is an abundant number, since it is smaller than the sum of its proper divisors (22696776913662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211121022210 is a wasteful number, since it uses less digits than its factorization.

12211121022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97121928 (or 97121925 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12211121022210 its reverse (1222012111221), we get a palindrome (13433133133431).

The spelling of 12211121022210 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, twenty-two thousand, two hundred ten".