100220212012120 has 32 divisors (see below), whose sum is σ = 225497574418320. Its totient is φ = 40087711935360.

The previous prime is 100220212012097. The next prime is 100220212012127. The reversal of 100220212012120 is 21210212022001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100220212012094 and 100220212012103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220212012127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7277646 + ... + 15918685.

Almost surely, 2^{100220212012120} is an apocalyptic number.

100220212012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100220212012120 is an abundant number, since it is smaller than the sum of its proper divisors (125277362406200).

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

100220212012120 is a wasteful number, since it uses less digits than its factorization.

100220212012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23304355 (or 23304351 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100220212012120 its reverse (21210212022001), we get a palindrome (121430424034121).

The spelling of 100220212012120 in words is "one hundred trillion, two hundred twenty billion, two hundred twelve million, twelve thousand, one hundred twenty".