2115356012 has 24 divisors (see below), whose sum is σ = 4615322880. Its totient is φ = 824164560.

The previous prime is 2115356003. The next prime is 2115356017. The reversal of 2115356012 is 2106535112.

It is not an unprimeable number, because it can be changed into a prime (2115356017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3433712 + ... + 3434327.

It is an arithmetic number, because the mean of its divisors is an integer number (192305120).

Almost surely, 2^2115356012 is an apocalyptic number.

2115356012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2115356012 is an abundant number, since it is smaller than the sum of its proper divisors (2499966868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115356012 is a wasteful number, since it uses less digits than its factorization.

2115356012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6868061 (or 6868059 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2115356012 is about 45992.9995977649. Note that the first 3 decimals coincide. The cubic root of 2115356012 is about 1283.6929508775.

Subtracting from 2115356012 its reverse (2106535112), we obtain a square (8820900 = 2970²).

The spelling of 2115356012 in words is "two billion, one hundred fifteen million, three hundred fifty-six thousand, twelve".