2321216010 has 24 divisors (see below), whose sum is σ = 6035161860. Its totient is φ = 618990912.

The previous prime is 2321215903. The next prime is 2321216011. The reversal of 2321216010 is 106121232.

2321216010 is a `hidden beast` number, since 23 + 21 + 21 + 601 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2098281249 + 222934761 = 45807^2 + 14931^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2321216011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12895555 + ... + 12895734.

Almost surely, 2^2321216010 is an apocalyptic number.

2321216010 is an abundant number, since it is smaller than the sum of its proper divisors (3713945850).

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

2321216010 is a wasteful number, since it uses less digits than its factorization.

2321216010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25791302 (or 25791299 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2321216010 is about 48178.9996782831. Note that the first 3 decimals coincide. The cubic root of 2321216010 is about 1324.0524394092.

Adding to 2321216010 its reverse (106121232), we get a palindrome (2427337242).

The spelling of 2321216010 in words is "two billion, three hundred twenty-one million, two hundred sixteen thousand, ten".