101201099969 has 2 divisors, whose sum is σ = 101201099970. Its totient is φ = 101201099968.

The previous prime is 101201099933. The next prime is 101201100019. The reversal of 101201099969 is 969990102101.

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., 75028331569 + 26172768400 = 273913^2 + 161780^2 .

It is a cyclic number.

It is not a de Polignac number, because 101201099969 - 2²⁴ = 101184322753 is a prime.

It is a super-2 number, since 2×101201099969² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (101201099669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600549984 + 50600549985.

It is an arithmetic number, because the mean of its divisors is an integer number (50600549985).

Almost surely, 2^101201099969 is an apocalyptic number.

It is an amenable number.

101201099969 is a deficient number, since it is larger than the sum of its proper divisors (1).

101201099969 is an equidigital number, since it uses as much as digits as its factorization.

101201099969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 47.

The spelling of 101201099969 in words is "one hundred one billion, two hundred one million, ninety-nine thousand, nine hundred sixty-nine".