211421525351 has 2 divisors, whose sum is σ = 211421525352. Its totient is φ = 211421525350.

The previous prime is 211421525327. The next prime is 211421525429. The reversal of 211421525351 is 153525124112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211421525351 is a prime.

It is a super-2 number, since 2×211421525351² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211421521351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710762675 + 105710762676.

It is an arithmetic number, because the mean of its divisors is an integer number (105710762676).

Almost surely, 2^211421525351 is an apocalyptic number.

211421525351 is a deficient number, since it is larger than the sum of its proper divisors (1).

211421525351 is an equidigital number, since it uses as much as digits as its factorization.

211421525351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 32.

Adding to 211421525351 its reverse (153525124112), we get a palindrome (364946649463).

The spelling of 211421525351 in words is "two hundred eleven billion, four hundred twenty-one million, five hundred twenty-five thousand, three hundred fifty-one".