11221102020120 has 64 divisors (see below), whose sum is σ = 34298462797920. Its totient is φ = 2935835495424.

The previous prime is 11221102020061. The next prime is 11221102020197. The reversal of 11221102020120 is 2102020112211.

It is a super-2 number, since 2×11221102020120² (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 11221102020120.

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, 882155749 + ... + 882168468.

Almost surely, 2^{11221102020120} is an apocalyptic number.

11221102020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221102020120 is an abundant number, since it is smaller than the sum of its proper divisors (23077360777800).

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

11221102020120 is a wasteful number, since it uses less digits than its factorization.

11221102020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764324284 (or 1764324280 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221102020120 its reverse (2102020112211), we get a palindrome (13323122132331).

The spelling of 11221102020120 in words is "eleven trillion, two hundred twenty-one billion, one hundred two million, twenty thousand, one hundred twenty".