212221211051 has 2 divisors, whose sum is σ = 212221211052. Its totient is φ = 212221211050.

The previous prime is 212221211039. The next prime is 212221211057. The reversal of 212221211051 is 150112122212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212221211051 - 2¹⁴ = 212221194667 is a prime.

It is not a weakly prime, because it can be changed into another prime (212221211057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110605525 + 106110605526.

It is an arithmetic number, because the mean of its divisors is an integer number (106110605526).

Almost surely, 2^212221211051 is an apocalyptic number.

212221211051 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221211051 is an equidigital number, since it uses as much as digits as its factorization.

212221211051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 212221211051 its reverse (150112122212), we get a palindrome (362333333263).

The spelling of 212221211051 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred eleven thousand, fifty-one".