1200202101220 has 12 divisors (see below), whose sum is σ = 2520424412604. Its totient is φ = 480080840480.

The previous prime is 1200202101211. The next prime is 1200202101253. The reversal of 1200202101220 is 221012020021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 677253286116 + 522948815104 = 822954^2 + 723152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1200202101220.

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, 30005052511 + ... + 30005052550.

It is an arithmetic number, because the mean of its divisors is an integer number (210035367717).

Almost surely, 2^{1200202101220} is an apocalyptic number.

1200202101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200202101220 is an abundant number, since it is smaller than the sum of its proper divisors (1320222311384).

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

1200202101220 is a wasteful number, since it uses less digits than its factorization.

1200202101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60010105070 (or 60010105068 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1200202101220 its reverse (221012020021), we get a palindrome (1421214121241).

The spelling of 1200202101220 in words is "one trillion, two hundred billion, two hundred two million, one hundred one thousand, two hundred twenty".