1200122013132 has 36 divisors (see below), whose sum is σ = 3467019149776. Its totient is φ = 342892003680.

The previous prime is 1200122013127. The next prime is 1200122013179. The reversal of 1200122013132 is 2313102210021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2381194219 + ... + 2381194722.

Almost surely, 2^{1200122013132} is an apocalyptic number.

1200122013132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200122013132 is an abundant number, since it is smaller than the sum of its proper divisors (2266897136644).

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

1200122013132 is a wasteful number, since it uses less digits than its factorization.

1200122013132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4762388958 (or 4762388953 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1200122013132 its reverse (2313102210021), we get a palindrome (3513224223153).

The spelling of 1200122013132 in words is "one trillion, two hundred billion, one hundred twenty-two million, thirteen thousand, one hundred thirty-two".