10202222221 has 8 divisors (see below), whose sum is σ = 10319110560. Its totient is φ = 10085757552.

The previous prime is 10202222207. The next prime is 10202222339. The reversal of 10202222221 is 12222220201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10202222221 - 2¹¹ = 10202220173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202222195 and 10202222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202222621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57355 + ... + 153928.

It is an arithmetic number, because the mean of its divisors is an integer number (1289888820).

Almost surely, 2^10202222221 is an apocalyptic number.

It is an amenable number.

10202222221 is a deficient number, since it is larger than the sum of its proper divisors (116888339).

10202222221 is a wasteful number, since it uses less digits than its factorization.

10202222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211835.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10202222221 its reverse (12222220201), we get a palindrome (22424442422).

The spelling of 10202222221 in words is "ten billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty-one".