222221001322 has 4 divisors (see below), whose sum is σ = 333331501986. Its totient is φ = 111110500660.

The previous prime is 222221001193. The next prime is 222221001367. The reversal of 222221001322 is 223100122222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 144870823161 + 77350178161 = 380619^2 + 278119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222221001322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555250329 + ... + 55555250332.

Almost surely, 2^222221001322 is an apocalyptic number.

222221001322 is a deficient number, since it is larger than the sum of its proper divisors (111110500664).

222221001322 is a wasteful number, since it uses less digits than its factorization.

222221001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111110500663.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222221001322 its reverse (223100122222), we get a palindrome (445321123544).

The spelling of 222221001322 in words is "two hundred twenty-two billion, two hundred twenty-one million, one thousand, three hundred twenty-two".