212222212112147 has 2 divisors, whose sum is σ = 212222212112148. Its totient is φ = 212222212112146.

The previous prime is 212222212112137. The next prime is 212222212112179. The reversal of 212222212112147 is 741211212222212.

It is an a-pointer prime, because the next prime (212222212112179) can be obtained adding 212222212112147 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212222212112147 - 2²⁶ = 212222145003283 is a prime.

It is a super-2 number, since 2×212222212112147² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212222212112107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111106056073 + 106111106056074.

It is an arithmetic number, because the mean of its divisors is an integer number (106111106056074).

Almost surely, 2^{212222212112147} is an apocalyptic number.

212222212112147 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222212112147 is an equidigital number, since it uses as much as digits as its factorization.

212222212112147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 32.

Adding to 212222212112147 its reverse (741211212222212), we get a palindrome (953433424334359).

The spelling of 212222212112147 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twelve thousand, one hundred forty-seven".