210101122079 has 2 divisors, whose sum is σ = 210101122080. Its totient is φ = 210101122078.

The previous prime is 210101121949. The next prime is 210101122097. The reversal of 210101122079 is 970221101012.

Together with next prime (210101122097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210101122079 - 2³⁶ = 141381645343 is a prime.

It is a super-2 number, since 2×210101122079² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210101122279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050561039 + 105050561040.

It is an arithmetic number, because the mean of its divisors is an integer number (105050561040).

Almost surely, 2^210101122079 is an apocalyptic number.

210101122079 is a deficient number, since it is larger than the sum of its proper divisors (1).

210101122079 is an equidigital number, since it uses as much as digits as its factorization.

210101122079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 210101122079 in words is "two hundred ten billion, one hundred one million, one hundred twenty-two thousand, seventy-nine".