2102233551 has 24 divisors (see below), whose sum is σ = 3164248752. Its totient is φ = 1239638400.

The previous prime is 2102233537. The next prime is 2102233559. The reversal of 2102233551 is 1553322012.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2102233551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102233559) 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 23 ways as a sum of consecutive naturals, for example, 64830 + ... + 91691.

It is an arithmetic number, because the mean of its divisors is an integer number (131843698).

Almost surely, 2^2102233551 is an apocalyptic number.

2102233551 is a deficient number, since it is larger than the sum of its proper divisors (1062015201).

2102233551 is a wasteful number, since it uses less digits than its factorization.

2102233551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156583 (or 156572 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2102233551 is about 45850.1205123825. The cubic root of 2102233551 is about 1281.0330102934.

Adding to 2102233551 its reverse (1553322012), we get a palindrome (3655555563).

The spelling of 2102233551 in words is "two billion, one hundred two million, two hundred thirty-three thousand, five hundred fifty-one".