100122212220012 has 72 divisors (see below), whose sum is σ = 260094260471136. Its totient is φ = 32451158905344.

The previous prime is 100122212219993. The next prime is 100122212220103. The reversal of 100122212220012 is 210022212221001.

It is a happy number.

100122212220012 is a `hidden beast` number, since 100 + 122 + 212 + 220 + 0 + 12 = 666.

It is a super-2 number, since 2×100122212220012² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22131928 + ... + 26269119.

Almost surely, 2^{100122212220012} is an apocalyptic number.

100122212220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100122212220012 is an abundant number, since it is smaller than the sum of its proper divisors (159972048251124).

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

100122212220012 is a wasteful number, since it uses less digits than its factorization.

100122212220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48402647 (or 48402642 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 100122212220012 its reverse (210022212221001), we get a palindrome (310144424441013).

The spelling of 100122212220012 in words is "one hundred trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty thousand, twelve".