111215012241 has 16 divisors (see below), whose sum is σ = 149084587008. Its totient is φ = 73744502400.

The previous prime is 111215012239. The next prime is 111215012257. The reversal of 111215012241 is 142210512111.

It is not a de Polignac number, because 111215012241 - 2¹ = 111215012239 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111215012641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7130071 + ... + 7145651.

It is an arithmetic number, because the mean of its divisors is an integer number (9317786688).

Almost surely, 2^111215012241 is an apocalyptic number.

It is an amenable number.

111215012241 is a deficient number, since it is larger than the sum of its proper divisors (37869574767).

111215012241 is a wasteful number, since it uses less digits than its factorization.

111215012241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28232.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 111215012241 its reverse (142210512111), we get a palindrome (253425524352).

The spelling of 111215012241 in words is "one hundred eleven billion, two hundred fifteen million, twelve thousand, two hundred forty-one".