1121102021120 has 40 divisors (see below), whose sum is σ = 2688017273964. Its totient is φ = 448440807424.

The previous prime is 1121102021101. The next prime is 1121102021153. The reversal of 1121102021120 is 211202011211.

It can be written as a sum of positive squares in 2 ways, for example, as 1043764635904 + 77337385216 = 1021648^2 + 278096^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1121102021095 and 1121102021104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218962679 + ... + 218967798.

Almost surely, 2^{1121102021120} is an apocalyptic number.

1121102021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121102021120 is an abundant number, since it is smaller than the sum of its proper divisors (1566915252844).

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

1121102021120 is an frugal number, since it uses more digits than its factorization.

1121102021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437930500 (or 437930484 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1121102021120 its reverse (211202011211), we get a palindrome (1332304032331).

Subtracting from 1121102021120 its reverse (211202011211), we obtain a palindrome (909900009909).

The spelling of 1121102021120 in words is "one trillion, one hundred twenty-one billion, one hundred two million, twenty-one thousand, one hundred twenty".