222222100101 has 4 divisors (see below), whose sum is σ = 296296133472. Its totient is φ = 148148066732.

The previous prime is 222222100069. The next prime is 222222100109. The reversal of 222222100101 is 101001222222.

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 222222100101 - 2⁵ = 222222100069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222100109) 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, 37037016681 + ... + 37037016686.

It is an arithmetic number, because the mean of its divisors is an integer number (74074033368).

Almost surely, 2^222222100101 is an apocalyptic number.

It is an amenable number.

222222100101 is a deficient number, since it is larger than the sum of its proper divisors (74074033371).

222222100101 is an equidigital number, since it uses as much as digits as its factorization.

222222100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74074033370.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222222100101 its reverse (101001222222), we get a palindrome (323223322323).

The spelling of 222222100101 in words is "two hundred twenty-two billion, two hundred twenty-two million, one hundred thousand, one hundred one".