101220012200 has 48 divisors (see below), whose sum is σ = 236391953280. Its totient is φ = 40306426560.

The previous prime is 101220012191. The next prime is 101220012211. The reversal of 101220012200 is 2210022101.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090154 + ... + 1179353.

It is an arithmetic number, because the mean of its divisors is an integer number (4924832360).

Almost surely, 2^101220012200 is an apocalyptic number.

101220012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220012200 is an abundant number, since it is smaller than the sum of its proper divisors (135171941080).

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

101220012200 is a wasteful number, since it uses less digits than its factorization.

101220012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269746 (or 2269737 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101220012200 its reverse (2210022101), we get a palindrome (103430034301).

Subtracting from 101220012200 its reverse (2210022101), we obtain a palindrome (99009990099).

The spelling of 101220012200 in words is "one hundred one billion, two hundred twenty million, twelve thousand, two hundred".