101220320000 has 90 divisors (see below), whose sum is σ = 252476141148. Its totient is φ = 40488064000.

The previous prime is 101220319933. The next prime is 101220320023. The reversal of 101220320000 is 23022101.

It is a happy number.

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, 156314 + ... + 476313.

Almost surely, 2^101220320000 is an apocalyptic number.

101220320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220320000 is an abundant number, since it is smaller than the sum of its proper divisors (151255821148).

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

101220320000 is an frugal number, since it uses more digits than its factorization.

101220320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632663 (or 632634 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 101220320000 its reverse (23022101), we get a palindrome (101243342101).

The spelling of 101220320000 in words is "one hundred one billion, two hundred twenty million, three hundred twenty thousand".