100020112212220 has 48 divisors (see below), whose sum is σ = 213002307721728. Its totient is φ = 39444230790720.

The previous prime is 100020112212191. The next prime is 100020112212247. The reversal of 100020112212220 is 22212211020001.

It is a happy number.

It is a super-4 number, since 4×100020112212220⁴ (a number of 57 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100020112212194 and 100020112212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254186467 + ... + 254579653.

It is an arithmetic number, because the mean of its divisors is an integer number (4437548077536).

Almost surely, 2^{100020112212220} is an apocalyptic number.

100020112212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020112212220 is an abundant number, since it is smaller than the sum of its proper divisors (112982195509508).

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

100020112212220 is a wasteful number, since it uses less digits than its factorization.

100020112212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572410 (or 572408 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100020112212220 its reverse (22212211020001), we get a palindrome (122232323232221).

The spelling of 100020112212220 in words is "one hundred trillion, twenty billion, one hundred twelve million, two hundred twelve thousand, two hundred twenty".