212223220051 has 2 divisors, whose sum is σ = 212223220052. Its totient is φ = 212223220050.

The previous prime is 212223219997. The next prime is 212223220057. The reversal of 212223220051 is 150022322212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212223220051 - 2²¹ = 212221122899 is a prime.

It is not a weakly prime, because it can be changed into another prime (212223220057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111610025 + 106111610026.

It is an arithmetic number, because the mean of its divisors is an integer number (106111610026).

Almost surely, 2^212223220051 is an apocalyptic number.

212223220051 is a deficient number, since it is larger than the sum of its proper divisors (1).

212223220051 is an equidigital number, since it uses as much as digits as its factorization.

212223220051 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 212223220051 its reverse (150022322212), we get a palindrome (362245542263).

The spelling of 212223220051 in words is "two hundred twelve billion, two hundred twenty-three million, two hundred twenty thousand, fifty-one".