1222555190 has 32 divisors (see below), whose sum is σ = 2320254720. Its totient is φ = 462517344.

The previous prime is 1222555183. The next prime is 1222555241. The reversal of 1222555190 is 915552221.

It is a super-2 number, since 2×1222555190² = 2989282385191872200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 117167 + ... + 127173.

It is an arithmetic number, because the mean of its divisors is an integer number (72507960).

Almost surely, 2^1222555190 is an apocalyptic number.

1222555190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222555190 is a deficient number, since it is larger than the sum of its proper divisors (1097699530).

1222555190 is a wasteful number, since it uses less digits than its factorization.

1222555190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10676.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 1222555190 is about 34965.0566995107. The cubic root of 1222555190 is about 1069.2751925993.

The spelling of 1222555190 in words is "one billion, two hundred twenty-two million, five hundred fifty-five thousand, one hundred ninety".