2100512001 has 16 divisors (see below), whose sum is σ = 3244628864. Its totient is φ = 1183849344.

The previous prime is 2100511999. The next prime is 2100512017. The reversal of 2100512001 is 1002150012.

It is not a de Polignac number, because 2100512001 - 2¹ = 2100511999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100512081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683566 + ... + 686631.

It is an arithmetic number, because the mean of its divisors is an integer number (202789304).

Almost surely, 2^2100512001 is an apocalyptic number.

2100512001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2100512001 is a deficient number, since it is larger than the sum of its proper divisors (1144116863).

2100512001 is a wasteful number, since it uses less digits than its factorization.

2100512001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370280.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2100512001 is about 45831.3429979965. The cubic root of 2100512001 is about 1280.6832291994.

Adding to 2100512001 its reverse (1002150012), we get a palindrome (3102662013).

The spelling of 2100512001 in words is "two billion, one hundred million, five hundred twelve thousand, one".