221113102302 has 48 divisors (see below), whose sum is σ = 480789691200. Its totient is φ = 73441536000.

The previous prime is 221113102297. The next prime is 221113102307. The reversal of 221113102302 is 203201311122.

It is an interprime number because it is at equal distance from previous prime (221113102297) and next prime (221113102307).

It is a super-2 number, since 2×221113102302² (a number of 23 digits) contains 22 as substring.

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 (221113102307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6132427 + ... + 6168377.

It is an arithmetic number, because the mean of its divisors is an integer number (10016451900).

Almost surely, 2^221113102302 is an apocalyptic number.

221113102302 is an abundant number, since it is smaller than the sum of its proper divisors (259676588898).

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

221113102302 is a wasteful number, since it uses less digits than its factorization.

221113102302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37169 (or 37166 counting only the distinct ones).

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

Adding to 221113102302 its reverse (203201311122), we get a palindrome (424314413424).

The spelling of 221113102302 in words is "two hundred twenty-one billion, one hundred thirteen million, one hundred two thousand, three hundred two".