100212221120120 has 128 divisors (see below), whose sum is σ = 228620039155200. Its totient is φ = 39530411328000.

The previous prime is 100212221120023. The next prime is 100212221120129. The reversal of 100212221120120 is 21021122212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212221120129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1347245330 + ... + 1347319710.

It is an arithmetic number, because the mean of its divisors is an integer number (1786094055900).

Almost surely, 2^{100212221120120} is an apocalyptic number.

100212221120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100212221120120 is an abundant number, since it is smaller than the sum of its proper divisors (128407818035080).

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

100212221120120 is a wasteful number, since it uses less digits than its factorization.

100212221120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76149 (or 76145 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100212221120120 its reverse (21021122212001), we get a palindrome (121233343332121).

The spelling of 100212221120120 in words is "one hundred trillion, two hundred twelve billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty".