22211121013 has 4 divisors (see below), whose sum is σ = 22440101740. Its totient is φ = 21982140288.

The previous prime is 22211121001. The next prime is 22211121017. The reversal of 22211121013 is 31012111222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7146504369 + 15064616644 = 84537^2 + 122738^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211121013 - 2¹³ = 22211112821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211121017) 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, 114490218 + ... + 114490411.

It is an arithmetic number, because the mean of its divisors is an integer number (5610025435).

Almost surely, 2^22211121013 is an apocalyptic number.

It is an amenable number.

22211121013 is a deficient number, since it is larger than the sum of its proper divisors (228980727).

22211121013 is an equidigital number, since it uses as much as digits as its factorization.

22211121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228980726.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 22211121013 its reverse (31012111222), we get a palindrome (53223232235).

The spelling of 22211121013 in words is "twenty-two billion, two hundred eleven million, one hundred twenty-one thousand, thirteen".