100221202020120 has 128 divisors (see below), whose sum is σ = 305602814096640. Its totient is φ = 26286642685440.

The previous prime is 100221202020113. The next prime is 100221202020259. The reversal of 100221202020120 is 21020202122001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100221202020120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233168847 + ... + 233598273.

It is an arithmetic number, because the mean of its divisors is an integer number (2387521985130).

Almost surely, 2^{100221202020120} is an apocalyptic number.

100221202020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221202020120 is an abundant number, since it is smaller than the sum of its proper divisors (205381612076520).

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

100221202020120 is a wasteful number, since it uses less digits than its factorization.

100221202020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461385 (or 461381 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100221202020120 its reverse (21020202122001), we get a palindrome (121241404142121).

The spelling of 100221202020120 in words is "one hundred trillion, two hundred twenty-one billion, two hundred two million, twenty thousand, one hundred twenty".