22110185346421 has 2 divisors, whose sum is σ = 22110185346422. Its totient is φ = 22110185346420.

The previous prime is 22110185346409. The next prime is 22110185346427. The reversal of 22110185346421 is 12464358101122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15851657439396 + 6258527907025 = 3981414^2 + 2501705^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110185346421 - 2²¹ = 22110183249269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22110185346427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055092673210 + 11055092673211.

It is an arithmetic number, because the mean of its divisors is an integer number (11055092673211).

Almost surely, 2^{22110185346421} is an apocalyptic number.

It is an amenable number.

22110185346421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110185346421 is an equidigital number, since it uses as much as digits as its factorization.

22110185346421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 22110185346421 in words is "twenty-two trillion, one hundred ten billion, one hundred eighty-five million, three hundred forty-six thousand, four hundred twenty-one".