1201021112012 has 12 divisors (see below), whose sum is σ = 2103497114880. Its totient is φ = 600021936336.

The previous prime is 1201021112009. The next prime is 1201021112021. The reversal of 1201021112012 is 2102111201021.

It is a super-2 number, since 2×1201021112012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122149388 + ... + 122159219.

It is an arithmetic number, because the mean of its divisors is an integer number (175291426240).

Almost surely, 2^{1201021112012} is an apocalyptic number.

It is an amenable number.

1201021112012 is a deficient number, since it is larger than the sum of its proper divisors (902476002868).

1201021112012 is a wasteful number, since it uses less digits than its factorization.

1201021112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244309840 (or 244309838 counting only the distinct ones).

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

Adding to 1201021112012 its reverse (2102111201021), we get a palindrome (3303132313033).

The spelling of 1201021112012 in words is "one trillion, two hundred one billion, twenty-one million, one hundred twelve thousand, twelve".