19822122 has 12 divisors (see below), whose sum is σ = 42947970. Its totient is φ = 6607368.

The previous prime is 19822093. The next prime is 19822123. The reversal of 19822122 is 22122891.

It can be written as a sum of positive squares in only one way, i.e., 15374241 + 4447881 = 3921^2 + 2109^2 .

It is not an unprimeable number, because it can be changed into a prime (19822123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550597 + ... + 550632.

Almost surely, 2^19822122 is an apocalyptic number.

19822122 is an abundant number, since it is smaller than the sum of its proper divisors (23125848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19822122 is a wasteful number, since it uses less digits than its factorization.

19822122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101237 (or 1101234 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 19822122 is about 4452.2041732158. The cubic root of 19822122 is about 270.6346387911.

The spelling of 19822122 in words is "nineteen million, eight hundred twenty-two thousand, one hundred twenty-two".