22103419861 has 2 divisors, whose sum is σ = 22103419862. Its totient is φ = 22103419860.

The previous prime is 22103419823. The next prime is 22103419867. The reversal of 22103419861 is 16891430122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20674126225 + 1429293636 = 143785^2 + 37806^2 .

It is a cyclic number.

It is not a de Polignac number, because 22103419861 - 2⁷ = 22103419733 is a prime.

It is a super-2 number, since 2×22103419861² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22103419861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22103419867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051709930 + 11051709931.

It is an arithmetic number, because the mean of its divisors is an integer number (11051709931).

Almost surely, 2^22103419861 is an apocalyptic number.

It is an amenable number.

22103419861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22103419861 is an equidigital number, since it uses as much as digits as its factorization.

22103419861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

Adding to 22103419861 its reverse (16891430122), we get a palindrome (38994849983).

The spelling of 22103419861 in words is "twenty-two billion, one hundred three million, four hundred nineteen thousand, eight hundred sixty-one".