1021201022200 has 48 divisors (see below), whose sum is σ = 2380557177000. Its totient is φ = 407402593920.

The previous prime is 1021201022099. The next prime is 1021201022213. The reversal of 1021201022200 is 22201021201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6660355 + ... + 6811954.

Almost surely, 2^{1021201022200} is an apocalyptic number.

1021201022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021201022200 is an abundant number, since it is smaller than the sum of its proper divisors (1359356154800).

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

1021201022200 is a wasteful number, since it uses less digits than its factorization.

1021201022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13472704 (or 13472695 counting only the distinct ones).

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

Adding to 1021201022200 its reverse (22201021201), we get a palindrome (1043402043401).

Subtracting from 1021201022200 its reverse (22201021201), we obtain a palindrome (999000000999).

The spelling of 1021201022200 in words is "one trillion, twenty-one billion, two hundred one million, twenty-two thousand, two hundred".