1221002332 has 48 divisors (see below), whose sum is σ = 2430296064. Its totient is φ = 531720000.

The previous prime is 1221002327. The next prime is 1221002347. The reversal of 1221002332 is 2332001221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133333 + ... + 142195.

It is an arithmetic number, because the mean of its divisors is an integer number (50631168).

Almost surely, 2^1221002332 is an apocalyptic number.

It is an amenable number.

1221002332 is a deficient number, since it is larger than the sum of its proper divisors (1209293732).

1221002332 is a wasteful number, since it uses less digits than its factorization.

1221002332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010 (or 9008 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1221002332 is about 34942.8437881063. The cubic root of 1221002332 is about 1068.8222788822.

Adding to 1221002332 its reverse (2332001221), we get a palindrome (3553003553).

The spelling of 1221002332 in words is "one billion, two hundred twenty-one million, two thousand, three hundred thirty-two".