1331202213 has 24 divisors (see below), whose sum is σ = 2146441440. Its totient is φ = 788024160.

The previous prime is 1331202209. The next prime is 1331202247. The reversal of 1331202213 is 3122021331.

It is not a de Polignac number, because 1331202213 - 2² = 1331202209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331202203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152098 + ... + 160611.

It is an arithmetic number, because the mean of its divisors is an integer number (89435060).

Almost surely, 2^1331202213 is an apocalyptic number.

It is an amenable number.

1331202213 is a deficient number, since it is larger than the sum of its proper divisors (815239227).

1331202213 is a wasteful number, since it uses less digits than its factorization.

1331202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312769 (or 312766 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1331202213 is about 36485.6439301816. The cubic root of 1331202213 is about 1100.0557032398.

Adding to 1331202213 its reverse (3122021331), we get a palindrome (4453223544).

The spelling of 1331202213 in words is "one billion, three hundred thirty-one million, two hundred two thousand, two hundred thirteen".