2112400515146 has 16 divisors (see below), whose sum is σ = 3296810068200. Its totient is φ = 1013884874688.

The previous prime is 2112400515119. The next prime is 2112400515191. The reversal of 2112400515146 is 6415150042112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1714253397025 + 398147118121 = 1309295^2 + 630989^2 .

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, 105252101 + ... + 105272168.

Almost surely, 2^{2112400515146} is an apocalyptic number.

2112400515146 is a deficient number, since it is larger than the sum of its proper divisors (1184409553054).

2112400515146 is a wasteful number, since it uses less digits than its factorization.

2112400515146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210524473.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 2112400515146 its reverse (6415150042112), we get a palindrome (8527550557258).

The spelling of 2112400515146 in words is "two trillion, one hundred twelve billion, four hundred million, five hundred fifteen thousand, one hundred forty-six".