22002221011 has 4 divisors (see below), whose sum is σ = 22015188072. Its totient is φ = 21989253952.

The previous prime is 22002221009. The next prime is 22002221029. The reversal of 22002221011 is 11012220022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22002221011 - 2¹ = 22002221009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002220982 and 22002221000.

It is not an unprimeable number, because it can be changed into a prime (22002221911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6480985 + ... + 6484378.

It is an arithmetic number, because the mean of its divisors is an integer number (5503797018).

Almost surely, 2^22002221011 is an apocalyptic number.

22002221011 is a deficient number, since it is larger than the sum of its proper divisors (12967061).

22002221011 is a wasteful number, since it uses less digits than its factorization.

22002221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12967060.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22002221011 its reverse (11012220022), we get a palindrome (33014441033).

The spelling of 22002221011 in words is "twenty-two billion, two million, two hundred twenty-one thousand, eleven".