2101288889 has 16 divisors (see below), whose sum is σ = 2427789312. Its totient is φ = 1781412048.

The previous prime is 2101288883. The next prime is 2101288939. The reversal of 2101288889 is 9888821012.

It is a cyclic number.

It is not a de Polignac number, because 2101288889 - 2²⁰ = 2100240313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101288883) 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, 880592 + ... + 882974.

It is an arithmetic number, because the mean of its divisors is an integer number (151736832).

Almost surely, 2^2101288889 is an apocalyptic number.

It is an amenable number.

2101288889 is a deficient number, since it is larger than the sum of its proper divisors (326500423).

2101288889 is a wasteful number, since it uses less digits than its factorization.

2101288889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716.

The product of its (nonzero) digits is 147456, while the sum is 47.

The square root of 2101288889 is about 45839.8177243322. The cubic root of 2101288889 is about 1280.8410994067.

It can be divided in two parts, 21012 and 88889, that added together give a palindrome (109901).

The spelling of 2101288889 in words is "two billion, one hundred one million, two hundred eighty-eight thousand, eight hundred eighty-nine".