1201021021112 has 16 divisors (see below), whose sum is σ = 2456633907000. Its totient is φ = 545918645920.

The previous prime is 1201021021063. The next prime is 1201021021121. The reversal of 1201021021112 is 2111201201021.

It is a super-2 number, since 2×1201021021112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 6823982987 + ... + 6823983162.

Almost surely, 2^{1201021021112} is an apocalyptic number.

It is an amenable number.

1201021021112 is an abundant number, since it is smaller than the sum of its proper divisors (1255612885888).

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

1201021021112 is a wasteful number, since it uses less digits than its factorization.

1201021021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13647966166 (or 13647966162 counting only the distinct ones).

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

Adding to 1201021021112 its reverse (2111201201021), we get a palindrome (3312222222133).

The spelling of 1201021021112 in words is "one trillion, two hundred one billion, twenty-one million, twenty-one thousand, one hundred twelve".