2123212302 has 24 divisors (see below), whose sum is σ = 4651985520. Its totient is φ = 699784800.

The previous prime is 2123212283. The next prime is 2123212309. The reversal of 2123212302 is 2032123212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123212309) 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 11 ways as a sum of consecutive naturals, for example, 661074 + ... + 664277.

It is an arithmetic number, because the mean of its divisors is an integer number (193832730).

Almost surely, 2^2123212302 is an apocalyptic number.

2123212302 is an abundant number, since it is smaller than the sum of its proper divisors (2528773218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123212302 is a wasteful number, since it uses less digits than its factorization.

2123212302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325448 (or 1325445 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2123212302 is about 46078.3278993498. The cubic root of 2123212302 is about 1285.2801706566.

Adding to 2123212302 its reverse (2032123212), we get a palindrome (4155335514).

The spelling of 2123212302 in words is "two billion, one hundred twenty-three million, two hundred twelve thousand, three hundred two".