2101285712 has 20 divisors (see below), whose sum is σ = 4211629620. Its totient is φ = 1014413568.

The previous prime is 2101285673. The next prime is 2101285717. The reversal of 2101285712 is 2175821012.

It can be written as a sum of positive squares in 2 ways, for example, as 1250046736 + 851238976 = 35356^2 + 29176^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101285717) 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 3 ways as a sum of consecutive naturals, for example, 2263853 + ... + 2264780.

It is an arithmetic number, because the mean of its divisors is an integer number (210581481).

Almost surely, 2^2101285712 is an apocalyptic number.

It is an amenable number.

2101285712 is an abundant number, since it is smaller than the sum of its proper divisors (2110343908).

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

2101285712 is a wasteful number, since it uses less digits than its factorization.

2101285712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528670 (or 4528664 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 2101285712 is about 45839.7830710399. The cubic root of 2101285712 is about 1280.8404538927.

The spelling of 2101285712 in words is "two billion, one hundred one million, two hundred eighty-five thousand, seven hundred twelve".