20122049 has 2 divisors, whose sum is σ = 20122050. Its totient is φ = 20122048.

The previous prime is 20122031. The next prime is 20122051. The reversal of 20122049 is 94022102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18318400 + 1803649 = 4280^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122049 - 2²⁴ = 3344833 is a prime.

Together with 20122051, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122049.

It is not a weakly prime, because it can be changed into another prime (20122649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061024 + 10061025.

It is an arithmetic number, because the mean of its divisors is an integer number (10061025).

Almost surely, 2^20122049 is an apocalyptic number.

It is an amenable number.

20122049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122049 is an equidigital number, since it uses as much as digits as its factorization.

20122049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20122049 is about 4485.7606935725. The cubic root of 20122049 is about 271.9927955488.

The spelling of 20122049 in words is "twenty million, one hundred twenty-two thousand, forty-nine".