1012321002112 has 64 divisors (see below), whose sum is σ = 2351875608000. Its totient is φ = 433851839232.

The previous prime is 1012321002059. The next prime is 1012321002157. The reversal of 1012321002112 is 2112001232101.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1012321002112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11484898 + ... + 11572705.

It is an arithmetic number, because the mean of its divisors is an integer number (36748056375).

Almost surely, 2^{1012321002112} is an apocalyptic number.

It is an amenable number.

1012321002112 is an abundant number, since it is smaller than the sum of its proper divisors (1339554605888).

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

1012321002112 is an frugal number, since it uses more digits than its factorization.

1012321002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23057638 (or 23057612 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1012321002112 its reverse (2112001232101), we get a palindrome (3124322234213).

The spelling of 1012321002112 in words is "one trillion, twelve billion, three hundred twenty-one million, two thousand, one hundred twelve".