2120099894 has 32 divisors (see below), whose sum is σ = 3530877696. Its totient is φ = 946645920.

The previous prime is 2120099893. The next prime is 2120099899. The reversal of 2120099894 is 4989900212.

It is a super-2 number, since 2×2120099894² = 8989647121077622472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120099893) 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 15 ways as a sum of consecutive naturals, for example, 583367 + ... + 586989.

It is an arithmetic number, because the mean of its divisors is an integer number (110339928).

Almost surely, 2^2120099894 is an apocalyptic number.

2120099894 is a deficient number, since it is larger than the sum of its proper divisors (1410777802).

2120099894 is a wasteful number, since it uses less digits than its factorization.

2120099894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 2120099894 is about 46044.5424996275. The cubic root of 2120099894 is about 1284.6518345960.

The spelling of 2120099894 in words is "two billion, one hundred twenty million, ninety-nine thousand, eight hundred ninety-four".