2112156015218 has 16 divisors (see below), whose sum is σ = 3277526820480. Its totient is φ = 1019648038416.

The previous prime is 2112156015209. The next prime is 2112156015253. The reversal of 2112156015218 is 8125106512112.

It is a happy number.

It is a super-2 number, since 2×2112156015218² (a number of 25 digits) contains 22 as substring.

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, 5253671 + ... + 5641397.

It is an arithmetic number, because the mean of its divisors is an integer number (204845426280).

Almost surely, 2^{2112156015218} is an apocalyptic number.

2112156015218 is a deficient number, since it is larger than the sum of its proper divisors (1165370805262).

2112156015218 is a wasteful number, since it uses less digits than its factorization.

2112156015218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481681.

The product of its (nonzero) digits is 9600, while the sum is 35.

The spelling of 2112156015218 in words is "two trillion, one hundred twelve billion, one hundred fifty-six million, fifteen thousand, two hundred eighteen".