222202123221 has 32 divisors (see below), whose sum is σ = 327003207552. Its totient is φ = 133338608640.

The previous prime is 222202123219. The next prime is 222202123279. The reversal of 222202123221 is 122321202222.

It is not a de Polignac number, because 222202123221 - 2¹ = 222202123219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202123721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3297361 + ... + 3364073.

It is an arithmetic number, because the mean of its divisors is an integer number (10218850236).

Almost surely, 2^222202123221 is an apocalyptic number.

It is an amenable number.

222202123221 is a deficient number, since it is larger than the sum of its proper divisors (104801084331).

222202123221 is a wasteful number, since it uses less digits than its factorization.

222202123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68853.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222202123221 its reverse (122321202222), we get a palindrome (344523325443).

The spelling of 222202123221 in words is "two hundred twenty-two billion, two hundred two million, one hundred twenty-three thousand, two hundred twenty-one".