121432205 has 8 divisors (see below), whose sum is σ = 145919232. Its totient is φ = 97012048.

The previous prime is 121432189. The next prime is 121432219. The reversal of 121432205 is 502234121.

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 121432205 - 2⁴ = 121432189 is a prime.

It is a super-2 number, since 2×121432205² = 29491560822324050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12629 + ... + 20058.

It is an arithmetic number, because the mean of its divisors is an integer number (18239904).

Almost surely, 2^121432205 is an apocalyptic number.

It is an amenable number.

121432205 is a deficient number, since it is larger than the sum of its proper divisors (24487027).

121432205 is an equidigital number, since it uses as much as digits as its factorization.

121432205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33435.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121432205 is about 11019.6281697705. The cubic root of 121432205 is about 495.1969491423.

Adding to 121432205 its reverse (502234121), we get a palindrome (623666326).

The spelling of 121432205 in words is "one hundred twenty-one million, four hundred thirty-two thousand, two hundred five".