111021002220004 has 96 divisors (see below), whose sum is σ = 208426807895040. Its totient is φ = 51558883909632.

The previous prime is 111021002220001. The next prime is 111021002220017. The reversal of 111021002220004 is 400022200120111.

It is a self number, because there is not a number n which added to its sum of digits gives 111021002220004.

It is not an unprimeable number, because it can be changed into a prime (111021002220001) 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, 19331531557 + ... + 19331537299.

It is an arithmetic number, because the mean of its divisors is an integer number (2171112582240).

Almost surely, 2^{111021002220004} is an apocalyptic number.

It is an amenable number.

111021002220004 is a deficient number, since it is larger than the sum of its proper divisors (97405805675036).

111021002220004 is a wasteful number, since it uses less digits than its factorization.

111021002220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11437 (or 11435 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111021002220004 its reverse (400022200120111), we get a palindrome (511043202340115).

The spelling of 111021002220004 in words is "one hundred eleven trillion, twenty-one billion, two million, two hundred twenty thousand, four".