122222020009 has 2 divisors, whose sum is σ = 122222020010. Its totient is φ = 122222020008.

The previous prime is 122222020007. The next prime is 122222020027. The reversal of 122222020009 is 900020222221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66950010009 + 55272010000 = 258747^2 + 235100^2 .

It is a cyclic number.

It is not a de Polignac number, because 122222020009 - 2¹ = 122222020007 is a prime.

Together with 122222020007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122222020007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111010004 + 61111010005.

It is an arithmetic number, because the mean of its divisors is an integer number (61111010005).

Almost surely, 2^122222020009 is an apocalyptic number.

It is an amenable number.

122222020009 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222020009 is an equidigital number, since it uses as much as digits as its factorization.

122222020009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 122222020009 in words is "one hundred twenty-two billion, two hundred twenty-two million, twenty thousand, nine".