1200220012122 has 48 divisors (see below), whose sum is σ = 2467602813312. Its totient is φ = 389176513920.

The previous prime is 1200220012093. The next prime is 1200220012129. The reversal of 1200220012122 is 2212100220021.

It is not an unprimeable number, because it can be changed into a prime (1200220012129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46322223 + ... + 46348125.

It is an arithmetic number, because the mean of its divisors is an integer number (51408391944).

Almost surely, 2^{1200220012122} is an apocalyptic number.

1200220012122 is an abundant number, since it is smaller than the sum of its proper divisors (1267382801190).

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

1200220012122 is a wasteful number, since it uses less digits than its factorization.

1200220012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31623 (or 31586 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1200220012122 its reverse (2212100220021), we get a palindrome (3412320232143).

The spelling of 1200220012122 in words is "one trillion, two hundred billion, two hundred twenty million, twelve thousand, one hundred twenty-two".