222021253 has 4 divisors (see below), whose sum is σ = 223017088. Its totient is φ = 221025420.

The previous prime is 222021221. The next prime is 222021271. The reversal of 222021253 is 352120222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222021253 - 2⁵ = 222021221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222021253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497583 + ... + 498028.

It is an arithmetic number, because the mean of its divisors is an integer number (55754272).

Almost surely, 2^222021253 is an apocalyptic number.

It is an amenable number.

222021253 is a deficient number, since it is larger than the sum of its proper divisors (995835).

222021253 is an equidigital number, since it uses as much as digits as its factorization.

222021253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995834.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 222021253 is about 14900.3776126647. The cubic root of 222021253 is about 605.5242165503.

Adding to 222021253 its reverse (352120222), we get a palindrome (574141475).

The spelling of 222021253 in words is "two hundred twenty-two million, twenty-one thousand, two hundred fifty-three".