10204142221 has 16 divisors (see below), whose sum is σ = 12563248768. Its totient is φ = 8070840000.

The previous prime is 10204142209. The next prime is 10204142231. The reversal of 10204142221 is 12224140201.

It is a cyclic number.

It is not a de Polignac number, because 10204142221 - 2¹¹ = 10204140173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10204142231) 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, 271846 + ... + 307096.

It is an arithmetic number, because the mean of its divisors is an integer number (785203048).

Almost surely, 2^10204142221 is an apocalyptic number.

It is an amenable number.

10204142221 is a deficient number, since it is larger than the sum of its proper divisors (2359106547).

10204142221 is a wasteful number, since it uses less digits than its factorization.

10204142221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38452.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10204142221 its reverse (12224140201), we get a palindrome (22428282422).

The spelling of 10204142221 in words is "ten billion, two hundred four million, one hundred forty-two thousand, two hundred twenty-one".