220222233221 has 8 divisors (see below), whose sum is σ = 238863714264. Its totient is φ = 202212666880.

The previous prime is 220222233211. The next prime is 220222233223. The reversal of 220222233221 is 122332222022.

It can be written as a sum of positive squares in 4 ways, for example, as 38460700996 + 181761532225 = 196114^2 + 426335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220222233221 - 2³⁴ = 203042364037 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 (220222233223) 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, 157977950 + ... + 157979343.

It is an arithmetic number, because the mean of its divisors is an integer number (29857964283).

Almost surely, 2^220222233221 is an apocalyptic number.

It is an amenable number.

220222233221 is a deficient number, since it is larger than the sum of its proper divisors (18641481043).

220222233221 is a wasteful number, since it uses less digits than its factorization.

220222233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315957351.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 220222233221 its reverse (122332222022), we get a palindrome (342554455243).

The spelling of 220222233221 in words is "two hundred twenty billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred twenty-one".