20000122249 has 2 divisors, whose sum is σ = 20000122250. Its totient is φ = 20000122248.

The previous prime is 20000122201. The next prime is 20000122283. The reversal of 20000122249 is 94222100002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18917251600 + 1082870649 = 137540^2 + 32907^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000122249 - 2¹⁵ = 20000089481 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000722249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000061124 + 10000061125.

It is an arithmetic number, because the mean of its divisors is an integer number (10000061125).

Almost surely, 2^20000122249 is an apocalyptic number.

It is an amenable number.

20000122249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000122249 is an equidigital number, since it uses as much as digits as its factorization.

20000122249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 20000122249 in words is "twenty billion, one hundred twenty-two thousand, two hundred forty-nine".