222100101 has 12 divisors (see below), whose sum is σ = 337696320. Its totient is φ = 140273640.

The previous prime is 222100097. The next prime is 222100103. The reversal of 222100101 is 101001222.

It is not a de Polignac number, because 222100101 - 2² = 222100097 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649245 + ... + 649586.

It is an arithmetic number, because the mean of its divisors is an integer number (28141360).

Almost surely, 2^222100101 is an apocalyptic number.

It is an amenable number.

222100101 is a deficient number, since it is larger than the sum of its proper divisors (115596219).

222100101 is a wasteful number, since it uses less digits than its factorization.

222100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298856 (or 1298853 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 222100101 is about 14903.0232167839. The cubic root of 222100101 is about 605.5958894525.

Adding to 222100101 its reverse (101001222), we get a palindrome (323101323).

The spelling of 222100101 in words is "two hundred twenty-two million, one hundred thousand, one hundred one".