1331030222 has 4 divisors (see below), whose sum is σ = 1996545336. Its totient is φ = 665515110.

The previous prime is 1331030219. The next prime is 1331030251. The reversal of 1331030222 is 2220301331.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1331030222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332757554 + ... + 332757557.

It is an arithmetic number, because the mean of its divisors is an integer number (499136334).

Almost surely, 2^1331030222 is an apocalyptic number.

1331030222 is a deficient number, since it is larger than the sum of its proper divisors (665515114).

1331030222 is an equidigital number, since it uses as much as digits as its factorization.

1331030222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665515113.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1331030222 is about 36483.2868859153. The cubic root of 1331030222 is about 1100.0083255568.

Adding to 1331030222 its reverse (2220301331), we get a palindrome (3551331553).

The spelling of 1331030222 in words is "one billion, three hundred thirty-one million, thirty thousand, two hundred twenty-two".