210212011112251 has 2 divisors, whose sum is σ = 210212011112252. Its totient is φ = 210212011112250.

The previous prime is 210212011112197. The next prime is 210212011112261. The reversal of 210212011112251 is 152211110212012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210212011112251 - 2¹¹ = 210212011110203 is a prime.

It is a super-2 number, since 2×210212011112251² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210212011112261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106005556125 + 105106005556126.

It is an arithmetic number, because the mean of its divisors is an integer number (105106005556126).

Almost surely, 2^{210212011112251} is an apocalyptic number.

210212011112251 is a deficient number, since it is larger than the sum of its proper divisors (1).

210212011112251 is an equidigital number, since it uses as much as digits as its factorization.

210212011112251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 22.

Adding to 210212011112251 its reverse (152211110212012), we get a palindrome (362423121324263).

The spelling of 210212011112251 in words is "two hundred ten trillion, two hundred twelve billion, eleven million, one hundred twelve thousand, two hundred fifty-one".