100020112222020 has 96 divisors (see below), whose sum is σ = 296534736546048. Its totient is φ = 25102704218112.

The previous prime is 100020112221979. The next prime is 100020112222061. The reversal of 100020112222020 is 20222211020001.

It is an interprime number because it is at equal distance from previous prime (100020112221979) and next prime (100020112222061).

It is a super-3 number, since 3×100020112222020³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69404632 + ... + 70831088.

It is an arithmetic number, because the mean of its divisors is an integer number (3088903505688).

Almost surely, 2^{100020112222020} is an apocalyptic number.

100020112222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020112222020 is an abundant number, since it is smaller than the sum of its proper divisors (196514624324028).

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

100020112222020 is a wasteful number, since it uses less digits than its factorization.

100020112222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495229 (or 1495227 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100020112222020 its reverse (20222211020001), we get a palindrome (120242323242021).

The spelling of 100020112222020 in words is "one hundred trillion, twenty billion, one hundred twelve million, two hundred twenty-two thousand, twenty".