10220011221 has 16 divisors (see below), whose sum is σ = 15575001728. Its totient is φ = 5839387200.

The previous prime is 10220011189. The next prime is 10220011229. The reversal of 10220011221 is 12211002201.

It is not a de Polignac number, because 10220011221 - 2⁵ = 10220011189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220011197 and 10220011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220011229) 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, 241251 + ... + 280431.

It is an arithmetic number, because the mean of its divisors is an integer number (973437608).

Almost surely, 2^10220011221 is an apocalyptic number.

It is an amenable number.

10220011221 is a deficient number, since it is larger than the sum of its proper divisors (5354990507).

10220011221 is a wasteful number, since it uses less digits than its factorization.

10220011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51612.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10220011221 its reverse (12211002201), we get a palindrome (22431013422).

The spelling of 10220011221 in words is "ten billion, two hundred twenty million, eleven thousand, two hundred twenty-one".