1212210012227 has 2 divisors, whose sum is σ = 1212210012228. Its totient is φ = 1212210012226.

The previous prime is 1212210012127. The next prime is 1212210012239. The reversal of 1212210012227 is 7222100122121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212210012227 - 2²⁸ = 1211941576771 is a prime.

It is a super-2 number, since 2×1212210012227² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212210012127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105006113 + 606105006114.

It is an arithmetic number, because the mean of its divisors is an integer number (606105006114).

Almost surely, 2^{1212210012227} is an apocalyptic number.

1212210012227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210012227 is an equidigital number, since it uses as much as digits as its factorization.

1212210012227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 1212210012227 its reverse (7222100122121), we get a palindrome (8434310134348).

The spelling of 1212210012227 in words is "one trillion, two hundred twelve billion, two hundred ten million, twelve thousand, two hundred twenty-seven".