101121221239 has 2 divisors, whose sum is σ = 101121221240. Its totient is φ = 101121221238.

The previous prime is 101121221231. The next prime is 101121221347. The reversal of 101121221239 is 932122121101.

It is a weak prime.

It is an emirp because it is prime and its reverse (932122121101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101121221239 - 2³ = 101121221231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101121221231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560610619 + 50560610620.

It is an arithmetic number, because the mean of its divisors is an integer number (50560610620).

Almost surely, 2^101121221239 is an apocalyptic number.

101121221239 is a deficient number, since it is larger than the sum of its proper divisors (1).

101121221239 is an equidigital number, since it uses as much as digits as its factorization.

101121221239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 101121221239 in words is "one hundred one billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty-nine".