1222151254 has 16 divisors (see below), whose sum is σ = 1918293120. Its totient is φ = 583260480.

The previous prime is 1222151237. The next prime is 1222151261. The reversal of 1222151254 is 4521512221.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 130489 + ... + 139540.

It is an arithmetic number, because the mean of its divisors is an integer number (119893320).

Almost surely, 2^1222151254 is an apocalyptic number.

1222151254 is a deficient number, since it is larger than the sum of its proper divisors (696141866).

1222151254 is a wasteful number, since it uses less digits than its factorization.

1222151254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270135.

The product of its digits is 1600, while the sum is 25.

The square root of 1222151254 is about 34959.2799410972. The cubic root of 1222151254 is about 1069.1574156881.

Adding to 1222151254 its reverse (4521512221), we get a palindrome (5743663475).

The spelling of 1222151254 in words is "one billion, two hundred twenty-two million, one hundred fifty-one thousand, two hundred fifty-four".