1121211302120 has 128 divisors (see below), whose sum is σ = 3205050992640. Its totient is φ = 343398251520.

The previous prime is 1121211302087. The next prime is 1121211302177. The reversal of 1121211302120 is 212031121211.

It is a happy number.

It is a super-2 number, since 2×1121211302120² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4855307 + ... + 5080986.

It is an arithmetic number, because the mean of its divisors is an integer number (25039460880).

Almost surely, 2^{1121211302120} is an apocalyptic number.

1121211302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121211302120 is an abundant number, since it is smaller than the sum of its proper divisors (2083839690520).

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

1121211302120 is a wasteful number, since it uses less digits than its factorization.

1121211302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9936355 (or 9936351 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121211302120 its reverse (212031121211), we get a palindrome (1333242423331).

The spelling of 1121211302120 in words is "one trillion, one hundred twenty-one billion, two hundred eleven million, three hundred two thousand, one hundred twenty".