111441221004 has 24 divisors (see below), whose sum is σ = 267057341488. Its totient is φ = 36143098560.

The previous prime is 111441220973. The next prime is 111441221027. The reversal of 111441221004 is 400122144111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125496427 + ... + 125497314.

Almost surely, 2^111441221004 is an apocalyptic number.

It is an amenable number.

111441221004 is an abundant number, since it is smaller than the sum of its proper divisors (155616120484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111441221004 is a wasteful number, since it uses less digits than its factorization.

111441221004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250993785 (or 250993783 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 111441221004 its reverse (400122144111), we get a palindrome (511563365115).

The spelling of 111441221004 in words is "one hundred eleven billion, four hundred forty-one million, two hundred twenty-one thousand, four".