212214699181217 has 2 divisors, whose sum is σ = 212214699181218. Its totient is φ = 212214699181216.

The previous prime is 212214699181207. The next prime is 212214699181237. The reversal of 212214699181217 is 712181996412212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189303504255121 + 22911194926096 = 13758761^2 + 4786564^2 .

It is a cyclic number.

It is not a de Polignac number, because 212214699181217 - 2¹² = 212214699177121 is a prime.

It is a super-4 number, since 4×212214699181217⁴ (a number of 58 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (212214699181207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106107349590608 + 106107349590609.

It is an arithmetic number, because the mean of its divisors is an integer number (106107349590609).

Almost surely, 2^{212214699181217} is an apocalyptic number.

It is an amenable number.

212214699181217 is a deficient number, since it is larger than the sum of its proper divisors (1).

212214699181217 is an equidigital number, since it uses as much as digits as its factorization.

212214699181217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 56.

The spelling of 212214699181217 in words is "two hundred twelve trillion, two hundred fourteen billion, six hundred ninety-nine million, one hundred eighty-one thousand, two hundred seventeen".