2111221023120 has 120 divisors (see below), whose sum is σ = 7734746140992. Its totient is φ = 511811155200.

The previous prime is 2111221023053. The next prime is 2111221023137. The reversal of 2111221023120 is 213201221112.

2111221023120 is a `hidden beast` number, since 211 + 1 + 221 + 0 + 231 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 2111221023093 and 2111221023102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133276236 + ... + 133292075.

Almost surely, 2^{2111221023120} is an apocalyptic number.

2111221023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111221023120 is an abundant number, since it is smaller than the sum of its proper divisors (5623525117872).

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

2111221023120 is a wasteful number, since it uses less digits than its factorization.

2111221023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266568341 (or 266568332 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2111221023120 its reverse (213201221112), we get a palindrome (2324422244232).

The spelling of 2111221023120 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, twenty-three thousand, one hundred twenty".