222112251 has 6 divisors (see below), whose sum is σ = 320828820. Its totient is φ = 148074828.

The previous prime is 222112217. The next prime is 222112273. The reversal of 222112251 is 152211222.

It is not a de Polignac number, because 222112251 - 2¹³ = 222104059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222112201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12339561 + ... + 12339578.

It is an arithmetic number, because the mean of its divisors is an integer number (53471470).

Almost surely, 2^222112251 is an apocalyptic number.

222112251 is a deficient number, since it is larger than the sum of its proper divisors (98716569).

222112251 is a wasteful number, since it uses less digits than its factorization.

222112251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24679145 (or 24679142 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 222112251 is about 14903.4308466205. The cubic root of 222112251 is about 605.6069323048.

Adding to 222112251 its reverse (152211222), we get a palindrome (374323473).

The spelling of 222112251 in words is "two hundred twenty-two million, one hundred twelve thousand, two hundred fifty-one".