221111031111316 has 24 divisors (see below), whose sum is σ = 389779043419584. Its totient is φ = 109748457128640.

The previous prime is 221111031111281. The next prime is 221111031111317. The reversal of 221111031111316 is 613111130111122.

221111031111316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221111031111317) 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, 358065520 + ... + 358682503.

It is an arithmetic number, because the mean of its divisors is an integer number (16240793475816).

Almost surely, 2^{221111031111316} is an apocalyptic number.

It is an amenable number.

221111031111316 is a deficient number, since it is larger than the sum of its proper divisors (168668012308268).

221111031111316 is a wasteful number, since it uses less digits than its factorization.

221111031111316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716748591 (or 716748589 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 25.

Adding to 221111031111316 its reverse (613111130111122), we get a palindrome (834222161222438).

The spelling of 221111031111316 in words is "two hundred twenty-one trillion, one hundred eleven billion, thirty-one million, one hundred eleven thousand, three hundred sixteen".