122011021019 has 2 divisors, whose sum is σ = 122011021020. Its totient is φ = 122011021018.

The previous prime is 122011021003. The next prime is 122011021021. The reversal of 122011021019 is 910120110221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122011021019 - 2⁴ = 122011021003 is a prime.

It is a super-2 number, since 2×122011021019² (a number of 23 digits) contains 22 as substring.

Together with 122011021021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122011021049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005510509 + 61005510510.

It is an arithmetic number, because the mean of its divisors is an integer number (61005510510).

Almost surely, 2^122011021019 is an apocalyptic number.

122011021019 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011021019 is an equidigital number, since it uses as much as digits as its factorization.

122011021019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 122011021019 in words is "one hundred twenty-two billion, eleven million, twenty-one thousand, nineteen".