2100100010 has 8 divisors (see below), whose sum is σ = 3780180036. Its totient is φ = 840040000.

The previous prime is 2100099979. The next prime is 2100100033. The reversal of 2100100010 is 100010012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2083100881 + 16999129 = 45641^2 + 4123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 2100099967 and 2100100003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105004991 + ... + 105005010.

Almost surely, 2^2100100010 is an apocalyptic number.

2100100010 is a deficient number, since it is larger than the sum of its proper divisors (1680080026).

2100100010 is a wasteful number, since it uses less digits than its factorization.

2100100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210010008.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 2100100010 is about 45826.8481351271. The cubic root of 2100100010 is about 1280.5994933509.

Adding to 2100100010 its reverse (100010012), we get a palindrome (2200110022).

The spelling of 2100100010 in words is "two billion, one hundred million, one hundred thousand, ten".