121355432201 has 8 divisors (see below), whose sum is σ = 122666702400. Its totient is φ = 120047760720.

The previous prime is 121355432189. The next prime is 121355432257. The reversal of 121355432201 is 102234553121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121355432201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121355432281) 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, 831845 + ... + 966786.

It is an arithmetic number, because the mean of its divisors is an integer number (15333337800).

Almost surely, 2^121355432201 is an apocalyptic number.

It is an amenable number.

121355432201 is a deficient number, since it is larger than the sum of its proper divisors (1311270199).

121355432201 is a wasteful number, since it uses less digits than its factorization.

121355432201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799359.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 121355432201 its reverse (102234553121), we get a palindrome (223589985322).

The spelling of 121355432201 in words is "one hundred twenty-one billion, three hundred fifty-five million, four hundred thirty-two thousand, two hundred one".