122012220021907 has 2 divisors, whose sum is σ = 122012220021908. Its totient is φ = 122012220021906.

The previous prime is 122012220021889. The next prime is 122012220022009. The reversal of 122012220021907 is 709120022210221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122012220021907 is a prime.

It is not a weakly prime, because it can be changed into another prime (122012220021407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006110010953 + 61006110010954.

It is an arithmetic number, because the mean of its divisors is an integer number (61006110010954).

Almost surely, 2^{122012220021907} is an apocalyptic number.

122012220021907 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012220021907 is an equidigital number, since it uses as much as digits as its factorization.

122012220021907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 122012220021907 in words is "one hundred twenty-two trillion, twelve billion, two hundred twenty million, twenty-one thousand, nine hundred seven".