20422995769381 has 2 divisors, whose sum is σ = 20422995769382. Its totient is φ = 20422995769380.

The previous prime is 20422995769333. The next prime is 20422995769511. The reversal of 20422995769381 is 18396759922402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15581895706881 + 4841100062500 = 3947391^2 + 2200250^2 .

It is a cyclic number.

It is not a de Polignac number, because 20422995769381 - 2²⁹ = 20422458898469 is a prime.

It is a super-2 number, since 2×20422995769381² (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 (20422995769081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211497884690 + 10211497884691.

It is an arithmetic number, because the mean of its divisors is an integer number (10211497884691).

It is a 2-persistent number, because it is pandigital, and so is 2⋅20422995769381 = 40845991538762, but 3⋅20422995769381 = 61268987308143 is not.

Almost surely, 2^{20422995769381} is an apocalyptic number.

It is an amenable number.

20422995769381 is a deficient number, since it is larger than the sum of its proper divisors (1).

20422995769381 is an equidigital number, since it uses as much as digits as its factorization.

20422995769381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117573120, while the sum is 67.

The spelling of 20422995769381 in words is "twenty trillion, four hundred twenty-two billion, nine hundred ninety-five million, seven hundred sixty-nine thousand, three hundred eighty-one".