10111221111120 has 80 divisors (see below), whose sum is σ = 31474846974912. Its totient is φ = 2685137541120.

The previous prime is 10111221111073. The next prime is 10111221111221. The reversal of 10111221111120 is 2111112211101.

It is a tau number, because it is divible by the number of its divisors (80).

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 10111221111120.

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, 87348982 + ... + 87464661.

Almost surely, 2^{10111221111120} is an apocalyptic number.

10111221111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111221111120 is an abundant number, since it is smaller than the sum of its proper divisors (21363625863792).

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

10111221111120 is a wasteful number, since it uses less digits than its factorization.

10111221111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174813900 (or 174813894 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10111221111120 its reverse (2111112211101), we get a palindrome (12222333322221).

The spelling of 10111221111120 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty".