1221102332 has 12 divisors (see below), whose sum is σ = 2141567736. Its totient is φ = 609225840.

The previous prime is 1221102329. The next prime is 1221102353. The reversal of 1221102332 is 2332011221.

It is a self number, because there is not a number n which added to its sum of digits gives 1221102332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329258 + ... + 332945.

It is an arithmetic number, because the mean of its divisors is an integer number (178463978).

Almost surely, 2^1221102332 is an apocalyptic number.

It is an amenable number.

1221102332 is a deficient number, since it is larger than the sum of its proper divisors (920465404).

1221102332 is a wasteful number, since it uses less digits than its factorization.

1221102332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662668 (or 662666 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1221102332 is about 34944.2746669608. The cubic root of 1221102332 is about 1068.8514569073.

Adding to 1221102332 its reverse (2332011221), we get a palindrome (3553113553).

The spelling of 1221102332 in words is "one billion, two hundred twenty-one million, one hundred two thousand, three hundred thirty-two".