222214751 has 4 divisors (see below), whose sum is σ = 242416104. Its totient is φ = 202013400.

The previous prime is 222214723. The next prime is 222214757. The reversal of 222214751 is 157412222.

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

It is a cyclic number.

It is not a de Polignac number, because 222214751 - 2⁶ = 222214687 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 222214751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222214757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10100660 + ... + 10100681.

It is an arithmetic number, because the mean of its divisors is an integer number (60604026).

Almost surely, 2^222214751 is an apocalyptic number.

222214751 is a deficient number, since it is larger than the sum of its proper divisors (20201353).

222214751 is a wasteful number, since it uses less digits than its factorization.

222214751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20201352.

The product of its digits is 2240, while the sum is 26.

The square root of 222214751 is about 14906.8692554808. The cubic root of 222214751 is about 605.7000761454.

Adding to 222214751 its reverse (157412222), we get a palindrome (379626973).

The spelling of 222214751 in words is "two hundred twenty-two million, two hundred fourteen thousand, seven hundred fifty-one".