201211010251 has 2 divisors, whose sum is σ = 201211010252. Its totient is φ = 201211010250.

The previous prime is 201211010233. The next prime is 201211010267. The reversal of 201211010251 is 152010112102.

It is an a-pointer prime, because the next prime (201211010267) can be obtained adding 201211010251 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201211010251 - 2³¹ = 199063526603 is a prime.

It is not a weakly prime, because it can be changed into another prime (201211010551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605505125 + 100605505126.

It is an arithmetic number, because the mean of its divisors is an integer number (100605505126).

Almost surely, 2^201211010251 is an apocalyptic number.

201211010251 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211010251 is an equidigital number, since it uses as much as digits as its factorization.

201211010251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 201211010251 its reverse (152010112102), we get a palindrome (353221122353).

The spelling of 201211010251 in words is "two hundred one billion, two hundred eleven million, ten thousand, two hundred fifty-one".