100112222212220 has 24 divisors (see below), whose sum is σ = 210291894582000. Its totient is φ = 40034178801792.

The previous prime is 100112222212201. The next prime is 100112222212231. The reversal of 100112222212220 is 22212222211001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100112222212192 and 100112222212201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669303545 + ... + 669453104.

It is an arithmetic number, because the mean of its divisors is an integer number (8762162274250).

Almost surely, 2^{100112222212220} is an apocalyptic number.

100112222212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100112222212220 is an abundant number, since it is smaller than the sum of its proper divisors (110179672369780).

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

100112222212220 is a wasteful number, since it uses less digits than its factorization.

100112222212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338760397 (or 1338760395 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 100112222212220 its reverse (22212222211001), we get a palindrome (122324444423221).

The spelling of 100112222212220 in words is "one hundred trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty".