102221131302 has 32 divisors (see below), whose sum is σ = 227307404160. Its totient is φ = 34051310280.

The previous prime is 102221131297. The next prime is 102221131307. The reversal of 102221131302 is 203131122201.

102221131302 is a `hidden beast` number, since 10 + 2 + 221 + 131 + 302 = 666.

102221131302 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (102221131297) and next prime (102221131307).

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 (102221131307) 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, 539224 + ... + 703707.

It is an arithmetic number, because the mean of its divisors is an integer number (7103356380).

Almost surely, 2^102221131302 is an apocalyptic number.

102221131302 is an abundant number, since it is smaller than the sum of its proper divisors (125086272858).

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

102221131302 is a wasteful number, since it uses less digits than its factorization.

102221131302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244465 (or 1244459 counting only the distinct ones).

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

Adding to 102221131302 its reverse (203131122201), we get a palindrome (305352253503).

The spelling of 102221131302 in words is "one hundred two billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred two".