1220200012122 has 64 divisors (see below), whose sum is σ = 3084746859264. Its totient is φ = 313113392640.

The previous prime is 1220200012099. The next prime is 1220200012147. The reversal of 1220200012122 is 2212100020221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30179779 + ... + 30220182.

It is an arithmetic number, because the mean of its divisors is an integer number (48199169676).

Almost surely, 2^{1220200012122} is an apocalyptic number.

1220200012122 is an abundant number, since it is smaller than the sum of its proper divisors (1864546847142).

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

1220200012122 is a wasteful number, since it uses less digits than its factorization.

1220200012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60400023.

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

Adding to 1220200012122 its reverse (2212100020221), we get a palindrome (3432300032343).

The spelling of 1220200012122 in words is "one trillion, two hundred twenty billion, two hundred million, twelve thousand, one hundred twenty-two".