100122212021112 has 256 divisors, whose sum is σ = 281921101862400. Its totient is φ = 32920318080000.

The previous prime is 100122212021059. The next prime is 100122212021119. The reversal of 100122212021112 is 211120212221001.

100122212021112 is a `hidden beast` number, since 100 + 1 + 222 + 120 + 211 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122212021119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6490055943 + ... + 6490071369.

It is an arithmetic number, because the mean of its divisors is an integer number (1101254304150).

Almost surely, 2^{100122212021112} is an apocalyptic number.

100122212021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100122212021112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140960550931200).

100122212021112 is an abundant number, since it is smaller than the sum of its proper divisors (181798889841288).

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

100122212021112 is a wasteful number, since it uses less digits than its factorization.

100122212021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16635 (or 16625 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 100122212021112 its reverse (211120212221001), we get a palindrome (311242424242113).

The spelling of 100122212021112 in words is "one hundred trillion, one hundred twenty-two billion, two hundred twelve million, twenty-one thousand, one hundred twelve".