212222201329 has 2 divisors, whose sum is σ = 212222201330. Its totient is φ = 212222201328.

The previous prime is 212222201311. The next prime is 212222201417. The reversal of 212222201329 is 923102222212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206863961329 + 5358240000 = 454823^2 + 73200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212222201329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212222201297 and 212222201306.

It is not a weakly prime, because it can be changed into another prime (212222201629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111100664 + 106111100665.

It is an arithmetic number, because the mean of its divisors is an integer number (106111100665).

Almost surely, 2^212222201329 is an apocalyptic number.

It is an amenable number.

212222201329 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222201329 is an equidigital number, since it uses as much as digits as its factorization.

212222201329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 212222201329 in words is "two hundred twelve billion, two hundred twenty-two million, two hundred one thousand, three hundred twenty-nine".