3921111223 has 8 divisors (see below), whose sum is σ = 4066189088. Its totient is φ = 3778091424.

The previous prime is 3921111203. The next prime is 3921111239. The reversal of 3921111223 is 3221111293.

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 3921111223 - 2⁵ = 3921111191 is a prime.

It is a super-2 number, since 2×3921111223² = 30750226446273111458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921111203) 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, 510636 + ... + 518257.

It is an arithmetic number, because the mean of its divisors is an integer number (508273636).

Almost surely, 2^3921111223 is an apocalyptic number.

3921111223 is a deficient number, since it is larger than the sum of its proper divisors (145077865).

3921111223 is a wasteful number, since it uses less digits than its factorization.

3921111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029033.

The product of its digits is 648, while the sum is 25.

The square root of 3921111223 is about 62618.7769203455. The cubic root of 3921111223 is about 1576.8960081341.

The spelling of 3921111223 in words is "three billion, nine hundred twenty-one million, one hundred eleven thousand, two hundred twenty-three".