1221003322 has 32 divisors (see below), whose sum is σ = 2304806400. Its totient is φ = 471263280.

The previous prime is 1221003319. The next prime is 1221003331. The reversal of 1221003322 is 2233001221.

It is a super-2 number, since 2×1221003322² = 2981698224670071368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221003296 and 1221003305.

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, 20572 + ... + 53527.

It is an arithmetic number, because the mean of its divisors is an integer number (72025200).

Almost surely, 2^1221003322 is an apocalyptic number.

1221003322 is a deficient number, since it is larger than the sum of its proper divisors (1083803078).

1221003322 is a wasteful number, since it uses less digits than its factorization.

1221003322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74226.

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

The square root of 1221003322 is about 34942.8579540941. The cubic root of 1221003322 is about 1068.8225677525.

Adding to 1221003322 its reverse (2233001221), we get a palindrome (3454004543).

The spelling of 1221003322 in words is "one billion, two hundred twenty-one million, three thousand, three hundred twenty-two".