212121010101227 has 2 divisors, whose sum is σ = 212121010101228. Its totient is φ = 212121010101226.

The previous prime is 212121010101149. The next prime is 212121010101233. The reversal of 212121010101227 is 722101010121212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212121010101227 - 2⁴² = 207722963590123 is a prime.

It is a super-3 number, since 3×212121010101227³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (212121010101257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060505050613 + 106060505050614.

It is an arithmetic number, because the mean of its divisors is an integer number (106060505050614).

Almost surely, 2^{212121010101227} is an apocalyptic number.

212121010101227 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121010101227 is an equidigital number, since it uses as much as digits as its factorization.

212121010101227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 212121010101227 its reverse (722101010121212), we get a palindrome (934222020222439).

The spelling of 212121010101227 in words is "two hundred twelve trillion, one hundred twenty-one billion, ten million, one hundred one thousand, two hundred twenty-seven".