1222549632 has 64 divisors (see below), whose sum is σ = 3608229600. Its totient is φ = 407515392.

The previous prime is 1222549631. The next prime is 1222549637. The reversal of 1222549632 is 2369452221.

1222549632 is a `hidden beast` number, since 12 + 2 + 2 + 5 + 4 + 9 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1222549631) 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 7 ways as a sum of consecutive naturals, for example, 173418 + ... + 180329.

Almost surely, 2^1222549632 is an apocalyptic number.

1222549632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222549632 is an abundant number, since it is smaller than the sum of its proper divisors (2385679968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222549632 is an equidigital number, since it uses as much as digits as its factorization.

1222549632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353770 (or 353752 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1222549632 is about 34964.9772200698. The cubic root of 1222549632 is about 1069.2735722115.

The spelling of 1222549632 in words is "one billion, two hundred twenty-two million, five hundred forty-nine thousand, six hundred thirty-two".