100112010122221 has 4 divisors (see below), whose sum is σ = 100553032193472. Its totient is φ = 99670988050972.

The previous prime is 100112010122171. The next prime is 100112010122287. The reversal of 100112010122221 is 122221010211001.

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 100112010122221 - 2¹¹ = 100112010120173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100112010122195 and 100112010122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112010122921) 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, 220511035285 + ... + 220511035738.

It is an arithmetic number, because the mean of its divisors is an integer number (25138258048368).

Almost surely, 2^{100112010122221} is an apocalyptic number.

It is an amenable number.

100112010122221 is a deficient number, since it is larger than the sum of its proper divisors (441022071251).

100112010122221 is an equidigital number, since it uses as much as digits as its factorization.

100112010122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441022071250.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100112010122221 its reverse (122221010211001), we get a palindrome (222333020333222).

The spelling of 100112010122221 in words is "one hundred trillion, one hundred twelve billion, ten million, one hundred twenty-two thousand, two hundred twenty-one".