2218210115157 has 32 divisors (see below), whose sum is σ = 3297015321600. Its totient is φ = 1473959337984.

The previous prime is 2218210115123. The next prime is 2218210115227. The reversal of 2218210115157 is 7515110128122.

2218210115157 is a `hidden beast` number, since 22 + 18 + 2 + 101 + 1 + 515 + 7 = 666.

It is not a de Polignac number, because 2218210115157 - 2¹⁴ = 2218210098773 is a prime.

It is a super-2 number, since 2×2218210115157² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218215115157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30527253 + ... + 30599829.

It is an arithmetic number, because the mean of its divisors is an integer number (103031728800).

Almost surely, 2^{2218210115157} is an apocalyptic number.

2218210115157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2218210115157 is a deficient number, since it is larger than the sum of its proper divisors (1078805206443).

2218210115157 is a wasteful number, since it uses less digits than its factorization.

2218210115157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76282 (or 76276 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 36.

The spelling of 2218210115157 in words is "two trillion, two hundred eighteen billion, two hundred ten million, one hundred fifteen thousand, one hundred fifty-seven".