210211212451 has 2 divisors, whose sum is σ = 210211212452. Its totient is φ = 210211212450.

The previous prime is 210211212391. The next prime is 210211212467. The reversal of 210211212451 is 154212112012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210211212451 - 2¹⁵ = 210211179683 is a prime.

It is not a weakly prime, because it can be changed into another prime (210211212481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105606225 + 105105606226.

It is an arithmetic number, because the mean of its divisors is an integer number (105105606226).

Almost surely, 2^210211212451 is an apocalyptic number.

210211212451 is a deficient number, since it is larger than the sum of its proper divisors (1).

210211212451 is an equidigital number, since it uses as much as digits as its factorization.

210211212451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 210211212451 its reverse (154212112012), we get a palindrome (364423324463).

The spelling of 210211212451 in words is "two hundred ten billion, two hundred eleven million, two hundred twelve thousand, four hundred fifty-one".