100122211021 has 24 divisors (see below), whose sum is σ = 117080619264. Its totient is φ = 85369032000.

The previous prime is 100122210989. The next prime is 100122211031. The reversal of 100122211021 is 120112221001.

It is not a de Polignac number, because 100122211021 - 2⁵ = 100122210989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100122210992 and 100122211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122211031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10609321 + ... + 10618753.

It is an arithmetic number, because the mean of its divisors is an integer number (4878359136).

Almost surely, 2^100122211021 is an apocalyptic number.

It is an amenable number.

100122211021 is a deficient number, since it is larger than the sum of its proper divisors (16958408243).

100122211021 is an equidigital number, since it uses as much as digits as its factorization.

100122211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561 (or 10554 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100122211021 its reverse (120112221001), we get a palindrome (220234432022).

The spelling of 100122211021 in words is "one hundred billion, one hundred twenty-two million, two hundred eleven thousand, twenty-one".