101221021020239 has 2 divisors, whose sum is σ = 101221021020240. Its totient is φ = 101221021020238.

The previous prime is 101221021020199. The next prime is 101221021020257. The reversal of 101221021020239 is 932020120122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101221021020239 - 2²⁰ = 101221019971663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101221021026239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610510510119 + 50610510510120.

It is an arithmetic number, because the mean of its divisors is an integer number (50610510510120).

Almost surely, 2^{101221021020239} is an apocalyptic number.

101221021020239 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221021020239 is an equidigital number, since it uses as much as digits as its factorization.

101221021020239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 101221021020239 in words is "one hundred one trillion, two hundred twenty-one billion, twenty-one million, twenty thousand, two hundred thirty-nine".