212030222251 has 2 divisors, whose sum is σ = 212030222252. Its totient is φ = 212030222250.

The previous prime is 212030222213. The next prime is 212030222269. The reversal of 212030222251 is 152222030212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212030222251 - 2¹¹ = 212030220203 is a prime.

It is not a weakly prime, because it can be changed into another prime (212030222281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106015111125 + 106015111126.

It is an arithmetic number, because the mean of its divisors is an integer number (106015111126).

Almost surely, 2^212030222251 is an apocalyptic number.

212030222251 is a deficient number, since it is larger than the sum of its proper divisors (1).

212030222251 is an equidigital number, since it uses as much as digits as its factorization.

212030222251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 212030222251 its reverse (152222030212), we get a palindrome (364252252463).

It can be divided in two parts, 212030 and 222251, that added together give a square (434281 = 659²).

The spelling of 212030222251 in words is "two hundred twelve billion, thirty million, two hundred twenty-two thousand, two hundred fifty-one".