12211101012120 has 64 divisors (see below), whose sum is σ = 36636288444000. Its totient is φ = 3256028233728.

The previous prime is 12211101012113. The next prime is 12211101012139. The reversal of 12211101012120 is 2121010111221.

It is a happy number.

It is a super-2 number, since 2×12211101012120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12211101012120.

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, 2665575 + ... + 5614934.

Almost surely, 2^{12211101012120} is an apocalyptic number.

12211101012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211101012120 is an abundant number, since it is smaller than the sum of its proper divisors (24425187431880).

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

12211101012120 is a wasteful number, since it uses less digits than its factorization.

12211101012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8292812 (or 8292808 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12211101012120 its reverse (2121010111221), we get a palindrome (14332111123341).

The spelling of 12211101012120 in words is "twelve trillion, two hundred eleven billion, one hundred one million, twelve thousand, one hundred twenty".