10001201021569 has 2 divisors, whose sum is σ = 10001201021570. Its totient is φ = 10001201021568.

The previous prime is 10001201021557. The next prime is 10001201021573. The reversal of 10001201021569 is 96512010210001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7243160281344 + 2758040740225 = 2691312^2 + 1660735^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001201021569 - 2⁹ = 10001201021057 is a prime.

It is a super-2 number, since 2×10001201021569² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10001201021519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000600510784 + 5000600510785.

It is an arithmetic number, because the mean of its divisors is an integer number (5000600510785).

Almost surely, 2^{10001201021569} is an apocalyptic number.

It is an amenable number.

10001201021569 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001201021569 is an equidigital number, since it uses as much as digits as its factorization.

10001201021569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 10001201021569 in words is "ten trillion, one billion, two hundred one million, twenty-one thousand, five hundred sixty-nine".