222840134 has 12 divisors (see below), whose sum is σ = 367410372. Its totient is φ = 101290860.

The previous prime is 222840133. The next prime is 222840139. The reversal of 222840134 is 431048222.

It is a super-2 number, since 2×222840134² = 99315450642275912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222840133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 460172 + ... + 460655.

It is an arithmetic number, because the mean of its divisors is an integer number (30617531).

Almost surely, 2^222840134 is an apocalyptic number.

222840134 is a deficient number, since it is larger than the sum of its proper divisors (144570238).

222840134 is a wasteful number, since it uses less digits than its factorization.

222840134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920851 (or 920840 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 222840134 is about 14927.8308538113. The cubic root of 222840134 is about 606.2677548348.

Adding to 222840134 its reverse (431048222), we get a palindrome (653888356).

The spelling of 222840134 in words is "two hundred twenty-two million, eight hundred forty thousand, one hundred thirty-four".