2105571412912 has 240 divisors, whose sum is σ = 5022765513504. Its totient is φ = 844876800000.

The previous prime is 2105571412843. The next prime is 2105571412913. The reversal of 2105571412912 is 2192141755012.

It is not an unprimeable number, because it can be changed into a prime (2105571412913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109081662 + ... + 109100962.

Almost surely, 2^{2105571412912} is an apocalyptic number.

2105571412912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105571412912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2511382756752).

2105571412912 is an abundant number, since it is smaller than the sum of its proper divisors (2917194100592).

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

2105571412912 is a wasteful number, since it uses less digits than its factorization.

2105571412912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19476 (or 19451 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 2105571412912 in words is "two trillion, one hundred five billion, five hundred seventy-one million, four hundred twelve thousand, nine hundred twelve".