10302210223221 has 24 divisors (see below), whose sum is σ = 15979543277184. Its totient is φ = 5886754386240.

The previous prime is 10302210223141. The next prime is 10302210223273. The reversal of 10302210223221 is 12232201220301.

It is not a de Polignac number, because 10302210223221 - 2⁹ = 10302210222709 is a prime.

It is a super-2 number, since 2×10302210223221² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302210221221) 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, 2608756 + ... + 5235458.

It is an arithmetic number, because the mean of its divisors is an integer number (665814303216).

Almost surely, 2^{10302210223221} is an apocalyptic number.

It is an amenable number.

10302210223221 is a deficient number, since it is larger than the sum of its proper divisors (5677333053963).

10302210223221 is a wasteful number, since it uses less digits than its factorization.

10302210223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653401 (or 2653394 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 10302210223221 its reverse (12232201220301), we get a palindrome (22534411443522).

The spelling of 10302210223221 in words is "ten trillion, three hundred two billion, two hundred ten million, two hundred twenty-three thousand, two hundred twenty-one".