201120211020251 has 2 divisors, whose sum is σ = 201120211020252. Its totient is φ = 201120211020250.

The previous prime is 201120211020193. The next prime is 201120211020269. The reversal of 201120211020251 is 152020112021102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201120211020251 - 2³⁰ = 201119137278427 is a prime.

It is not a weakly prime, because it can be changed into another prime (201120211020451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560105510125 + 100560105510126.

It is an arithmetic number, because the mean of its divisors is an integer number (100560105510126).

Almost surely, 2^{201120211020251} is an apocalyptic number.

201120211020251 is a deficient number, since it is larger than the sum of its proper divisors (1).

201120211020251 is an equidigital number, since it uses as much as digits as its factorization.

201120211020251 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 20.

Adding to 201120211020251 its reverse (152020112021102), we get a palindrome (353140323041353).

The spelling of 201120211020251 in words is "two hundred one trillion, one hundred twenty billion, two hundred eleven million, twenty thousand, two hundred fifty-one".