201212122221107 has 2 divisors, whose sum is σ = 201212122221108. Its totient is φ = 201212122221106.

The previous prime is 201212122220969. The next prime is 201212122221133. The reversal of 201212122221107 is 701122221212102.

It is a happy number.

It is an a-pointer prime, because the next prime (201212122221133) can be obtained adding 201212122221107 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201212122221107 is a prime.

It is not a weakly prime, because it can be changed into another prime (201212122220107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606061110553 + 100606061110554.

It is an arithmetic number, because the mean of its divisors is an integer number (100606061110554).

Almost surely, 2^{201212122221107} is an apocalyptic number.

201212122221107 is a deficient number, since it is larger than the sum of its proper divisors (1).

201212122221107 is an equidigital number, since it uses as much as digits as its factorization.

201212122221107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 201212122221107 its reverse (701122221212102), we get a palindrome (902334343433209).

The spelling of 201212122221107 in words is "two hundred one trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred seven".