1121011022120 has 64 divisors (see below), whose sum is σ = 2756391992640. Its totient is φ = 406926374400.

The previous prime is 1121011022081. The next prime is 1121011022129. The reversal of 1121011022120 is 212201101211.

It is a junction number, because it is equal to n+sod(n) for n = 1121011022095 and 1121011022104.

It is not an unprimeable number, because it can be changed into a prime (1121011022129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1979717 + ... + 2482196.

It is an arithmetic number, because the mean of its divisors is an integer number (43068624885).

Almost surely, 2^{1121011022120} is an apocalyptic number.

1121011022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121011022120 is an abundant number, since it is smaller than the sum of its proper divisors (1635380970520).

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

1121011022120 is a wasteful number, since it uses less digits than its factorization.

1121011022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462506 (or 4462502 counting only the distinct ones).

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

Adding to 1121011022120 its reverse (212201101211), we get a palindrome (1333212123331).

The spelling of 1121011022120 in words is "one trillion, one hundred twenty-one billion, eleven million, twenty-two thousand, one hundred twenty".