1320121332112 has 20 divisors (see below), whose sum is σ = 2790256452336. Its totient is φ = 600055150880.

The previous prime is 1320121332107. The next prime is 1320121332121. The reversal of 1320121332112 is 2112331210231.

It is a super-2 number, since 2×1320121332112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 3750344518 + ... + 3750344869.

Almost surely, 2^{1320121332112} is an apocalyptic number.

It is an amenable number.

1320121332112 is an abundant number, since it is smaller than the sum of its proper divisors (1470135120224).

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

1320121332112 is a wasteful number, since it uses less digits than its factorization.

1320121332112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500689406 (or 7500689400 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1320121332112 its reverse (2112331210231), we get a palindrome (3432452542343).

The spelling of 1320121332112 in words is "one trillion, three hundred twenty billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred twelve".