111215202055 has 8 divisors (see below), whose sum is σ = 133508112192. Its totient is φ = 88938915168.

The previous prime is 111215202001. The next prime is 111215202061. The reversal of 111215202055 is 550202512111.

It is a happy number.

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 111215202055 - 2²⁹ = 110678331143 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4141087 + ... + 4167856.

It is an arithmetic number, because the mean of its divisors is an integer number (16688514024).

Almost surely, 2^111215202055 is an apocalyptic number.

111215202055 is a deficient number, since it is larger than the sum of its proper divisors (22292910137).

111215202055 is an equidigital number, since it uses as much as digits as its factorization.

111215202055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311625.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 111215202055 its reverse (550202512111), we get a palindrome (661417714166).

The spelling of 111215202055 in words is "one hundred eleven billion, two hundred fifteen million, two hundred two thousand, fifty-five".