1222471632 has 80 divisors (see below), whose sum is σ = 3349285632. Its totient is φ = 382894080.

The previous prime is 1222471619. The next prime is 1222471633. The reversal of 1222471632 is 2361742221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222471632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222471633) 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 15 ways as a sum of consecutive naturals, for example, 992457 + ... + 993687.

Almost surely, 2^1222471632 is an apocalyptic number.

1222471632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222471632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674642816).

1222471632 is an abundant number, since it is smaller than the sum of its proper divisors (2126814000).

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

1222471632 is a wasteful number, since it uses less digits than its factorization.

1222471632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476 (or 2470 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 1222471632 is about 34963.8618004362. The cubic root of 1222471632 is about 1069.2508314545.

The spelling of 1222471632 in words is "one billion, two hundred twenty-two million, four hundred seventy-one thousand, six hundred thirty-two".