2100299999 has 8 divisors (see below), whose sum is σ = 2415632928. Its totient is φ = 1788789600.

The previous prime is 2100299939. The next prime is 2100300001. The reversal of 2100299999 is 9999920012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100299999 - 2¹² = 2100295903 is a prime.

It is a super-2 number, since 2×2100299999² = 8822520171598800002, which contains 22 as substring.

It is a Duffinian number.

2100299999 is a modest number, since divided by 99999 gives 21002 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100299909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954452 + ... + 956649.

It is an arithmetic number, because the mean of its divisors is an integer number (301954116).

Almost surely, 2^2100299999 is an apocalyptic number.

2100299999 is a deficient number, since it is larger than the sum of its proper divisors (315332929).

2100299999 is a wasteful number, since it uses less digits than its factorization.

2100299999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911265.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 2100299999 is about 45829.0300901077. The cubic root of 2100299999 is about 1280.6401418409.

The spelling of 2100299999 in words is "two billion, one hundred million, two hundred ninety-nine thousand, nine hundred ninety-nine".