22420020013 has 4 divisors (see below), whose sum is σ = 22625708380. Its totient is φ = 22214331648.

The previous prime is 22420019933. The next prime is 22420020047. The reversal of 22420020013 is 31002002422.

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 6402080169 + 16017939844 = 80013^2 + 126562^2 .

It is a cyclic number.

It is not a de Polignac number, because 22420020013 - 2¹⁷ = 22419888941 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 (22420020313) 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, 102844020 + ... + 102844237.

It is an arithmetic number, because the mean of its divisors is an integer number (5656427095).

Almost surely, 2^22420020013 is an apocalyptic number.

It is an amenable number.

22420020013 is a deficient number, since it is larger than the sum of its proper divisors (205688367).

22420020013 is a wasteful number, since it uses less digits than its factorization.

22420020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205688366.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22420020013 its reverse (31002002422), we get a palindrome (53422022435).

The spelling of 22420020013 in words is "twenty-two billion, four hundred twenty million, twenty thousand, thirteen".