222688101 has 16 divisors (see below), whose sum is σ = 303063488. Its totient is φ = 145411200.

The previous prime is 222688069. The next prime is 222688111. The reversal of 222688101 is 101886222.

222688101 = 1790² + 1791² + ... + 1856².

It is not a de Polignac number, because 222688101 - 2⁵ = 222688069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222688111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33321 + ... + 39441.

It is an arithmetic number, because the mean of its divisors is an integer number (18941468).

Almost surely, 2^222688101 is an apocalyptic number.

It is an amenable number.

222688101 is a deficient number, since it is larger than the sum of its proper divisors (80375387).

222688101 is a wasteful number, since it uses less digits than its factorization.

222688101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 222688101 is about 14922.7377179926. The cubic root of 222688101 is about 606.1298477868.

The spelling of 222688101 in words is "two hundred twenty-two million, six hundred eighty-eight thousand, one hundred one".