1220132213 has 4 divisors (see below), whose sum is σ = 1240812480. Its totient is φ = 1199451948.

The previous prime is 1220132209. The next prime is 1220132219. The reversal of 1220132213 is 3122310221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220132213 - 2² = 1220132209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220132191 and 1220132200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220132219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10340045 + ... + 10340162.

It is an arithmetic number, because the mean of its divisors is an integer number (310203120).

Almost surely, 2^1220132213 is an apocalyptic number.

It is an amenable number.

1220132213 is a deficient number, since it is larger than the sum of its proper divisors (20680267).

1220132213 is an equidigital number, since it uses as much as digits as its factorization.

1220132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20680266.

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

The square root of 1220132213 is about 34930.3909654616. The cubic root of 1220132213 is about 1068.5683280773.

Adding to 1220132213 its reverse (3122310221), we get a palindrome (4342442434).

The spelling of 1220132213 in words is "one billion, two hundred twenty million, one hundred thirty-two thousand, two hundred thirteen".