101222020120 has 32 divisors (see below), whose sum is σ = 245268742320. Its totient is φ = 37374284160.

The previous prime is 101222020093. The next prime is 101222020129. The reversal of 101222020120 is 21020222101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 101222020120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222020129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 97328346 + ... + 97329385.

Almost surely, 2^101222020120 is an apocalyptic number.

101222020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222020120 is an abundant number, since it is smaller than the sum of its proper divisors (144046722200).

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

101222020120 is a wasteful number, since it uses less digits than its factorization.

101222020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194657755 (or 194657751 counting only the distinct ones).

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

Adding to 101222020120 its reverse (21020222101), we get a palindrome (122242242221).

The spelling of 101222020120 in words is "one hundred one billion, two hundred twenty-two million, twenty thousand, one hundred twenty".