100222000020 has 36 divisors (see below), whose sum is σ = 304006733940. Its totient is φ = 26725866624.

The previous prime is 100222000019. The next prime is 100222000097. The reversal of 100222000020 is 20000222001.

It can be written as a sum of positive squares in 2 ways, for example, as 62909669124 + 37312330896 = 250818^2 + 193164^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100221999966 and 100222000011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278394265 + ... + 278394624.

Almost surely, 2^100222000020 is an apocalyptic number.

100222000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222000020 is an abundant number, since it is smaller than the sum of its proper divisors (203784733920).

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

100222000020 is a wasteful number, since it uses less digits than its factorization.

100222000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556788904 (or 556788899 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 100222000020 its reverse (20000222001), we get a palindrome (120222222021).

The spelling of 100222000020 in words is "one hundred billion, two hundred twenty-two million, twenty", and thus it is an aban number.