2221310502 has 12 divisors (see below), whose sum is σ = 4812839460. Its totient is φ = 740436828.

The previous prime is 2221310467. The next prime is 2221310513. The reversal of 2221310502 is 2050131222.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 123406139 = 2221310502 / (2 + 2 + 2 + 1 + 3 + 1 + 0 + 5 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61703052 + ... + 61703087.

It is an arithmetic number, because the mean of its divisors is an integer number (401069955).

Almost surely, 2^2221310502 is an apocalyptic number.

2221310502 is an abundant number, since it is smaller than the sum of its proper divisors (2591528958).

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

2221310502 is a wasteful number, since it uses less digits than its factorization.

2221310502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123406147 (or 123406144 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2221310502 is about 47130.7808337609. The cubic root of 2221310502 is about 1304.7773927780. Note that the first 3 decimals are identical.

Adding to 2221310502 its reverse (2050131222), we get a palindrome (4271441724).

The spelling of 2221310502 in words is "two billion, two hundred twenty-one million, three hundred ten thousand, five hundred two".