1201202020000 has 60 divisors (see below), whose sum is σ = 2955137198706. Its totient is φ = 480480800000.

The previous prime is 1201202019949. The next prime is 1201202020033. The reversal of 1201202020000 is 202021021.

It can be written as a sum of positive squares in 5 ways, for example, as 242737523856 + 958464496144 = 492684^2 + 979012^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30010051 + ... + 30050050.

Almost surely, 2^{1201202020000} is an apocalyptic number.

1201202020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201202020000 is an abundant number, since it is smaller than the sum of its proper divisors (1753935178706).

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

1201202020000 is an frugal number, since it uses more digits than its factorization.

1201202020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60060131 (or 60060108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1201202020000 its reverse (202021021), we get a palindrome (1201404041021).

The spelling of 1201202020000 in words is "one trillion, two hundred one billion, two hundred two million, twenty thousand".