221322102 has 16 divisors (see below), whose sum is σ = 446706480. Its totient is φ = 73096992.

The previous prime is 221322097. The next prime is 221322103. The reversal of 221322102 is 201223122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221322103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168553 + ... + 169860.

It is an arithmetic number, because the mean of its divisors is an integer number (27919155).

Almost surely, 2^221322102 is an apocalyptic number.

221322102 is an abundant number, since it is smaller than the sum of its proper divisors (225384378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221322102 is a wasteful number, since it uses less digits than its factorization.

221322102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338527.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 221322102 is about 14876.8982654315. The cubic root of 221322102 is about 604.8879440943.

Adding to 221322102 its reverse (201223122), we get a palindrome (422545224).

The spelling of 221322102 in words is "two hundred twenty-one million, three hundred twenty-two thousand, one hundred two".