210000101994 has 24 divisors (see below), whose sum is σ = 455012272260. Its totient is φ = 69998179968.

The previous prime is 210000101989. The next prime is 210000101999. The reversal of 210000101994 is 499101000012.

210000101994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (210000101989) and next prime (210000101999).

It can be written as a sum of positive squares in 2 ways, for example, as 160076009025 + 49924092969 = 400095^2 + 223437^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210000101999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660034 + ... + 925010.

Almost surely, 2^210000101994 is an apocalyptic number.

210000101994 is an abundant number, since it is smaller than the sum of its proper divisors (245012170266).

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

210000101994 is a wasteful number, since it uses less digits than its factorization.

210000101994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309014 (or 309011 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 210000101994 in words is "two hundred ten billion, one hundred one thousand, nine hundred ninety-four".