22022121013 has 4 divisors (see below), whose sum is σ = 22038717760. Its totient is φ = 22005524268.

The previous prime is 22022120999. The next prime is 22022121071. The reversal of 22022121013 is 31012122022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22022121013 is a prime.

It is a super-2 number, since 2×22022121013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022121073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8296383 + ... + 8299036.

It is an arithmetic number, because the mean of its divisors is an integer number (5509679440).

Almost surely, 2^22022121013 is an apocalyptic number.

It is an amenable number.

22022121013 is a deficient number, since it is larger than the sum of its proper divisors (16596747).

22022121013 is a wasteful number, since it uses less digits than its factorization.

22022121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16596746.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22022121013 its reverse (31012122022), we get a palindrome (53034243035).

The spelling of 22022121013 in words is "twenty-two billion, twenty-two million, one hundred twenty-one thousand, thirteen".