1222425554 has 8 divisors (see below), whose sum is σ = 2095586688. Its totient is φ = 523896660.

The previous prime is 1222425541. The next prime is 1222425557. The reversal of 1222425554 is 4555242221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1222425554.

It is not an unprimeable number, because it can be changed into a prime (1222425557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43658042 + ... + 43658069.

It is an arithmetic number, because the mean of its divisors is an integer number (261948336).

Almost surely, 2^1222425554 is an apocalyptic number.

1222425554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1222425554 is a deficient number, since it is larger than the sum of its proper divisors (873161134).

1222425554 is an equidigital number, since it uses as much as digits as its factorization.

1222425554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87316120.

The product of its digits is 32000, while the sum is 32.

The square root of 1222425554 is about 34963.2028567178. The cubic root of 1222425554 is about 1069.2373970435.

Adding to 1222425554 its reverse (4555242221), we get a palindrome (5777667775).

The spelling of 1222425554 in words is "one billion, two hundred twenty-two million, four hundred twenty-five thousand, five hundred fifty-four".