20122144320919 has 2 divisors, whose sum is σ = 20122144320920. Its totient is φ = 20122144320918.

The previous prime is 20122144320893. The next prime is 20122144320959. The reversal of 20122144320919 is 91902344122102.

It is an a-pointer prime, because the next prime (20122144320959) can be obtained adding 20122144320919 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20122144320919 - 2⁹ = 20122144320407 is a prime.

It is a super-2 number, since 2×20122144320919² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122144320959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061072160459 + 10061072160460.

It is an arithmetic number, because the mean of its divisors is an integer number (10061072160460).

Almost surely, 2^{20122144320919} is an apocalyptic number.

20122144320919 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122144320919 is an equidigital number, since it uses as much as digits as its factorization.

20122144320919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 20122144320919 in words is "twenty trillion, one hundred twenty-two billion, one hundred forty-four million, three hundred twenty thousand, nine hundred nineteen".