122101021019 has 2 divisors, whose sum is σ = 122101021020. Its totient is φ = 122101021018.

The previous prime is 122101020953. The next prime is 122101021039. The reversal of 122101021019 is 910120101221.

It is an a-pointer prime, because the next prime (122101021039) can be obtained adding 122101021019 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122101021019 is a prime.

It is a super-2 number, since 2×122101021019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122101021039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050510509 + 61050510510.

It is an arithmetic number, because the mean of its divisors is an integer number (61050510510).

Almost surely, 2^122101021019 is an apocalyptic number.

122101021019 is a deficient number, since it is larger than the sum of its proper divisors (1).

122101021019 is an equidigital number, since it uses as much as digits as its factorization.

122101021019 is an evil number, because the sum of its binary digits is even.

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

The spelling of 122101021019 in words is "one hundred twenty-two billion, one hundred one million, twenty-one thousand, nineteen".