121201001329 has 8 divisors (see below), whose sum is σ = 122291811432. Its totient is φ = 120110511360.

The previous prime is 121201001309. The next prime is 121201001401. The reversal of 121201001329 is 923100102121.

It can be written as a sum of positive squares in 4 ways, for example, as 35660545600 + 85540455729 = 188840^2 + 292473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121201001329 - 2²⁹ = 120664130417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201001309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715999 + ... + 868939.

It is an arithmetic number, because the mean of its divisors is an integer number (15286476429).

Almost surely, 2^121201001329 is an apocalyptic number.

It is an amenable number.

121201001329 is a deficient number, since it is larger than the sum of its proper divisors (1090810103).

121201001329 is a wasteful number, since it uses less digits than its factorization.

121201001329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160067.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 121201001329 in words is "one hundred twenty-one billion, two hundred one million, one thousand, three hundred twenty-nine".