100012201002221 has 4 divisors (see below), whose sum is σ = 100013025850752. Its totient is φ = 100011376153692.

The previous prime is 100012201002191. The next prime is 100012201002229. The reversal of 100012201002221 is 122200102210001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100012201002221 - 2¹⁰ = 100012201001197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100012201002196 and 100012201002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012201002229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412242365 + ... + 412484898.

It is an arithmetic number, because the mean of its divisors is an integer number (25003256462688).

Almost surely, 2^{100012201002221} is an apocalyptic number.

It is an amenable number.

100012201002221 is a deficient number, since it is larger than the sum of its proper divisors (824848531).

100012201002221 is an equidigital number, since it uses as much as digits as its factorization.

100012201002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824848530.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100012201002221 its reverse (122200102210001), we get a palindrome (222212303212222).

The spelling of 100012201002221 in words is "one hundred trillion, twelve billion, two hundred one million, two thousand, two hundred twenty-one".