35521060121009 has 2 divisors, whose sum is σ = 35521060121010. Its totient is φ = 35521060121008.

The previous prime is 35521060120961. The next prime is 35521060121059. The reversal of 35521060121009 is 90012106012553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35405356057600 + 115704063409 = 5950240^2 + 340153^2 .

It is a cyclic number.

It is not a de Polignac number, because 35521060121009 - 2²⁸ = 35520791685553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 35521060121009.

It is not a weakly prime, because it can be changed into another prime (35521060121059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17760530060504 + 17760530060505.

It is an arithmetic number, because the mean of its divisors is an integer number (17760530060505).

Almost surely, 2^{35521060121009} is an apocalyptic number.

It is an amenable number.

35521060121009 is a deficient number, since it is larger than the sum of its proper divisors (1).

35521060121009 is an equidigital number, since it uses as much as digits as its factorization.

35521060121009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 35521060121009 in words is "thirty-five trillion, five hundred twenty-one billion, sixty million, one hundred twenty-one thousand, nine".