100211220212120 has 32 divisors (see below), whose sum is σ = 235278517021920. Its totient is φ = 38341684254720.

The previous prime is 100211220212087. The next prime is 100211220212123. The reversal of 100211220212120 is 21212022112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211220212123) 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, 54462618761 + ... + 54462620600.

It is an arithmetic number, because the mean of its divisors is an integer number (7352453656935).

Almost surely, 2^{100211220212120} is an apocalyptic number.

100211220212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100211220212120 is an abundant number, since it is smaller than the sum of its proper divisors (135067296809800).

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

100211220212120 is a wasteful number, since it uses less digits than its factorization.

100211220212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108925239395 (or 108925239391 counting only the distinct ones).

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

Adding to 100211220212120 its reverse (21212022112001), we get a palindrome (121423242324121).

The spelling of 100211220212120 in words is "one hundred trillion, two hundred eleven billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty".