1220322213 has 32 divisors (see below), whose sum is σ = 1982344320. Its totient is φ = 735799680.

The previous prime is 1220322211. The next prime is 1220322217. The reversal of 1220322213 is 3122230221.

It is not a de Polignac number, because 1220322213 - 2¹ = 1220322211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220322211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48081 + ... + 68937.

It is an arithmetic number, because the mean of its divisors is an integer number (61948260).

Almost surely, 2^1220322213 is an apocalyptic number.

It is an amenable number.

1220322213 is a deficient number, since it is larger than the sum of its proper divisors (762022107).

1220322213 is a wasteful number, since it uses less digits than its factorization.

1220322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21074 (or 21068 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1220322213 is about 34933.1105543151. The cubic root of 1220322213 is about 1068.6237913139.

Adding to 1220322213 its reverse (3122230221), we get a palindrome (4342552434).

The spelling of 1220322213 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, two hundred thirteen".