102221200231 has 4 divisors (see below), whose sum is σ = 102264682464. Its totient is φ = 102177718000.

The previous prime is 102221200229. The next prime is 102221200309. The reversal of 102221200231 is 132002122201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102221200231 - 2¹ = 102221200229 is a prime.

It is a super-2 number, since 2×102221200231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221200831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21737590 + ... + 21742291.

It is an arithmetic number, because the mean of its divisors is an integer number (25566170616).

Almost surely, 2^102221200231 is an apocalyptic number.

102221200231 is a deficient number, since it is larger than the sum of its proper divisors (43482233).

102221200231 is an equidigital number, since it uses as much as digits as its factorization.

102221200231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43482232.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102221200231 its reverse (132002122201), we get a palindrome (234223322432).

The spelling of 102221200231 in words is "one hundred two billion, two hundred twenty-one million, two hundred thousand, two hundred thirty-one".