100012222220020 has 48 divisors (see below), whose sum is σ = 229132369142208. Its totient is φ = 36365944290560.

The previous prime is 100012222220017. The next prime is 100012222220047. The reversal of 100012222220020 is 20022222210001.

It is a junction number, because it is equal to n+sod(n) for n = 100012222219976 and 100012222220003.

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, 9597454 + ... + 17091973.

It is an arithmetic number, because the mean of its divisors is an integer number (4773591023796).

Almost surely, 2^{100012222220020} is an apocalyptic number.

100012222220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100012222220020 is an abundant number, since it is smaller than the sum of its proper divisors (129120146922188).

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

100012222220020 is a wasteful number, since it uses less digits than its factorization.

100012222220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26706480 (or 26706478 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 100012222220020 its reverse (20022222210001), we get a palindrome (120034444430021).

The spelling of 100012222220020 in words is "one hundred trillion, twelve billion, two hundred twenty-two million, two hundred twenty thousand, twenty".