220933922726389 has 2 divisors, whose sum is σ = 220933922726390. Its totient is φ = 220933922726388.

The previous prime is 220933922726383. The next prime is 220933922726431. The reversal of 220933922726389 is 983627229339022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140940038881489 + 79993883844900 = 11871817^2 + 8943930^2 .

It is a cyclic number.

It is not a de Polignac number, because 220933922726389 - 2¹⁷ = 220933922595317 is a prime.

It is a super-2 number, since 2×220933922726389² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220933922726383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110466961363194 + 110466961363195.

It is an arithmetic number, because the mean of its divisors is an integer number (110466961363195).

Almost surely, 2^{220933922726389} is an apocalyptic number.

It is an amenable number.

220933922726389 is a deficient number, since it is larger than the sum of its proper divisors (1).

220933922726389 is an equidigital number, since it uses as much as digits as its factorization.

220933922726389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211631616, while the sum is 67.

The spelling of 220933922726389 in words is "two hundred twenty trillion, nine hundred thirty-three billion, nine hundred twenty-two million, seven hundred twenty-six thousand, three hundred eighty-nine".