101021220100069 has 2 divisors, whose sum is σ = 101021220100070. Its totient is φ = 101021220100068.

The previous prime is 101021220100063. The next prime is 101021220100123. The reversal of 101021220100069 is 960001022120101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59160125999844 + 41861094100225 = 7691562^2 + 6470015^2 .

It is a cyclic number.

It is not a de Polignac number, because 101021220100069 - 2³ = 101021220100061 is a prime.

It is a super-2 number, since 2×101021220100069² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101021220100061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510610050034 + 50510610050035.

It is an arithmetic number, because the mean of its divisors is an integer number (50510610050035).

Almost surely, 2^{101021220100069} is an apocalyptic number.

It is an amenable number.

101021220100069 is a deficient number, since it is larger than the sum of its proper divisors (1).

101021220100069 is an equidigital number, since it uses as much as digits as its factorization.

101021220100069 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 101021220100069 in words is "one hundred one trillion, twenty-one billion, two hundred twenty million, one hundred thousand, sixty-nine".