2115121022205 has 8 divisors (see below), whose sum is σ = 3384193635552. Its totient is φ = 1128064545168.

The previous prime is 2115121022177. The next prime is 2115121022219. The reversal of 2115121022205 is 5022201215112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2115121022205 - 2¹⁵ = 2115120989437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70504034059 + ... + 70504034088.

It is an arithmetic number, because the mean of its divisors is an integer number (423024204444).

Almost surely, 2^{2115121022205} is an apocalyptic number.

It is an amenable number.

2115121022205 is a deficient number, since it is larger than the sum of its proper divisors (1269072613347).

2115121022205 is a wasteful number, since it uses less digits than its factorization.

2115121022205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141008068155.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 2115121022205 its reverse (5022201215112), we get a palindrome (7137322237317).

The spelling of 2115121022205 in words is "two trillion, one hundred fifteen billion, one hundred twenty-one million, twenty-two thousand, two hundred five".