12101122021210 has 16 divisors (see below), whose sum is σ = 23063314911336. Its totient is φ = 4555716525568.

The previous prime is 12101122021169. The next prime is 12101122021211. The reversal of 12101122021210 is 1212022110121.

It can be written as a sum of positive squares in 4 ways, for example, as 12095099795601 + 6022225609 = 3477801^2 + 77603^2 .

It is not an unprimeable number, because it can be changed into a prime (12101122021211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35591535187 + ... + 35591535526.

Almost surely, 2^{12101122021210} is an apocalyptic number.

12101122021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101122021210 is a deficient number, since it is larger than the sum of its proper divisors (10962192890126).

12101122021210 is a wasteful number, since it uses less digits than its factorization.

12101122021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71183070737.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12101122021210 its reverse (1212022110121), we get a palindrome (13313144131331).

The spelling of 12101122021210 in words is "twelve trillion, one hundred one billion, one hundred twenty-two million, twenty-one thousand, two hundred ten".