1352221311 has 32 divisors (see below), whose sum is σ = 2079129600. Its totient is φ = 765756000.

The previous prime is 1352221307. The next prime is 1352221319. The reversal of 1352221311 is 1131222531.

It is not a de Polignac number, because 1352221311 - 2² = 1352221307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352221319) 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, 1800186 + ... + 1800936.

It is an arithmetic number, because the mean of its divisors is an integer number (64972800).

Almost surely, 2^1352221311 is an apocalyptic number.

1352221311 is a deficient number, since it is larger than the sum of its proper divisors (726908289).

1352221311 is a wasteful number, since it uses less digits than its factorization.

1352221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419.

The product of its digits is 360, while the sum is 21.

The square root of 1352221311 is about 36772.5619314184. The cubic root of 1352221311 is about 1105.8152936986.

Adding to 1352221311 its reverse (1131222531), we get a palindrome (2483443842).

The spelling of 1352221311 in words is "one billion, three hundred fifty-two million, two hundred twenty-one thousand, three hundred eleven".