3221111131 has 8 divisors (see below), whose sum is σ = 3681634784. Its totient is φ = 2760678720.

The previous prime is 3221111129. The next prime is 3221111143. The reversal of 3221111131 is 1311111223.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3221111131 - 2¹ = 3221111129 is a prime.

It is a super-2 number, since 2×3221111131² = 20751113836504198322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221111191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90151 + ... + 120703.

It is an arithmetic number, because the mean of its divisors is an integer number (460204348).

Almost surely, 2^3221111131 is an apocalyptic number.

3221111131 is a deficient number, since it is larger than the sum of its proper divisors (460523653).

3221111131 is a wasteful number, since it uses less digits than its factorization.

3221111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45621.

The product of its digits is 36, while the sum is 16.

The square root of 3221111131 is about 56754.8335474610. The cubic root of 3221111131 is about 1476.8460854802.

Adding to 3221111131 its reverse (1311111223), we get a palindrome (4532222354).

The spelling of 3221111131 in words is "three billion, two hundred twenty-one million, one hundred eleven thousand, one hundred thirty-one".