2122020000251 has 2 divisors, whose sum is σ = 2122020000252. Its totient is φ = 2122020000250.

The previous prime is 2122020000119. The next prime is 2122020000257. The reversal of 2122020000251 is 1520000202212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122020000251 - 2¹⁸ = 2122019738107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2122020000257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061010000125 + 1061010000126.

It is an arithmetic number, because the mean of its divisors is an integer number (1061010000126).

Almost surely, 2^{2122020000251} is an apocalyptic number.

2122020000251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122020000251 is an equidigital number, since it uses as much as digits as its factorization.

2122020000251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 2122020000251 its reverse (1520000202212), we get a palindrome (3642020202463).

The spelling of 2122020000251 in words is "two trillion, one hundred twenty-two billion, twenty million, two hundred fifty-one", and thus it is an aban number.