1222122002209 has 2 divisors, whose sum is σ = 1222122002210. Its totient is φ = 1222122002208.

The previous prime is 1222122002207. The next prime is 1222122002239. The reversal of 1222122002209 is 9022002212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1143103105600 + 79018896609 = 1069160^2 + 281103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222122002209 - 2¹ = 1222122002207 is a prime.

Together with 1222122002207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1222122002207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611061001104 + 611061001105.

It is an arithmetic number, because the mean of its divisors is an integer number (611061001105).

Almost surely, 2^{1222122002209} is an apocalyptic number.

It is an amenable number.

1222122002209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222122002209 is an equidigital number, since it uses as much as digits as its factorization.

1222122002209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 1222122002209 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two thousand, two hundred nine".