1201202221100 has 36 divisors (see below), whose sum is σ = 2978981510064. Its totient is φ = 411840761280.

The previous prime is 1201202221049. The next prime is 1201202221117. The reversal of 1201202221100 is 11222021021.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 858000887 + ... + 858002286.

Almost surely, 2^{1201202221100} is an apocalyptic number.

1201202221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201202221100 is an abundant number, since it is smaller than the sum of its proper divisors (1777779288964).

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

1201202221100 is a wasteful number, since it uses less digits than its factorization.

1201202221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716003194 (or 1716003187 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201202221100 its reverse (11222021021), we get a palindrome (1212424242121).

The spelling of 1201202221100 in words is "one trillion, two hundred one billion, two hundred two million, two hundred twenty-one thousand, one hundred".