1222275154 has 8 divisors (see below), whose sum is σ = 1913126400. Its totient is φ = 584566356.

The previous prime is 1222275139. The next prime is 1222275157. The reversal of 1222275154 is 4515722221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1222275157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13285554 + ... + 13285645.

It is an arithmetic number, because the mean of its divisors is an integer number (239140800).

Almost surely, 2^1222275154 is an apocalyptic number.

1222275154 is a deficient number, since it is larger than the sum of its proper divisors (690851246).

1222275154 is a wasteful number, since it uses less digits than its factorization.

1222275154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26571224.

The product of its digits is 11200, while the sum is 31.

The square root of 1222275154 is about 34961.0519578573. The cubic root of 1222275154 is about 1069.1935443662.

Adding to 1222275154 its reverse (4515722221), we get a palindrome (5737997375).

The spelling of 1222275154 in words is "one billion, two hundred twenty-two million, two hundred seventy-five thousand, one hundred fifty-four".