22010011221 has 16 divisors (see below), whose sum is σ = 32017043520. Its totient is φ = 13338366720.

The previous prime is 22010011213. The next prime is 22010011271. The reversal of 22010011221 is 12211001022.

It is not a de Polignac number, because 22010011221 - 2³ = 22010011213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22010011197 and 22010011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010011211) 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, 801901 + ... + 828893.

It is an arithmetic number, because the mean of its divisors is an integer number (2001065220).

Almost surely, 2^22010011221 is an apocalyptic number.

It is an amenable number.

22010011221 is a deficient number, since it is larger than the sum of its proper divisors (10007032299).

22010011221 is a wasteful number, since it uses less digits than its factorization.

22010011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51716.

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

Adding to 22010011221 its reverse (12211001022), we get a palindrome (34221012243).

The spelling of 22010011221 in words is "twenty-two billion, ten million, eleven thousand, two hundred twenty-one".