1200220121112 has 32 divisors (see below), whose sum is σ = 3104017556400. Its totient is φ = 386277739904.

The previous prime is 1200220121059. The next prime is 1200220121137. The reversal of 1200220121112 is 2111210220021.

It is a junction number, because it is equal to n+sod(n) for n = 1200220121091 and 1200220121100.

It is a congruent number.

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, 862226403 + ... + 862227794.

Almost surely, 2^{1200220121112} is an apocalyptic number.

1200220121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200220121112 is an abundant number, since it is smaller than the sum of its proper divisors (1903797435288).

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

1200220121112 is a wasteful number, since it uses less digits than its factorization.

1200220121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724454235 (or 1724454231 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1200220121112 its reverse (2111210220021), we get a palindrome (3311430341133).

The spelling of 1200220121112 in words is "one trillion, two hundred billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twelve".