121232003223221 has 8 divisors (see below), whose sum is σ = 136813545957600. Its totient is φ = 106410535744240.

The previous prime is 121232003223211. The next prime is 121232003223251. The reversal of 121232003223221 is 122322300232121.

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 121232003223221 - 2²⁶ = 121231936114357 is a prime.

It is a super-2 number, since 2×121232003223221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232003223211) 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, 190018813511 + ... + 190018814148.

It is an arithmetic number, because the mean of its divisors is an integer number (17101693244700).

Almost surely, 2^{121232003223221} is an apocalyptic number.

121232003223221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121232003223221 is a deficient number, since it is larger than the sum of its proper divisors (15581542734379).

121232003223221 is a wasteful number, since it uses less digits than its factorization.

121232003223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380037627699.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121232003223221 its reverse (122322300232121), we get a palindrome (243554303455342).

The spelling of 121232003223221 in words is "one hundred twenty-one trillion, two hundred thirty-two billion, three million, two hundred twenty-three thousand, two hundred twenty-one".