121231003301221 has 8 divisors (see below), whose sum is σ = 132348326999904. Its totient is φ = 110129733502320.

The previous prime is 121231003301209. The next prime is 121231003301231. The reversal of 121231003301221 is 122103300132121.

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 121231003301221 - 2²⁹ = 121230466430309 is a prime.

It is a super-2 number, since 2×121231003301221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121231003301192 and 121231003301201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231003301231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4013459151 + ... + 4013489356.

It is an arithmetic number, because the mean of its divisors is an integer number (16543540874988).

Almost surely, 2^{121231003301221} is an apocalyptic number.

121231003301221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121231003301221 is a deficient number, since it is larger than the sum of its proper divisors (11117323698683).

121231003301221 is a wasteful number, since it uses less digits than its factorization.

121231003301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8026949891.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121231003301221 its reverse (122103300132121), we get a palindrome (243334303433342).

The spelling of 121231003301221 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three million, three hundred one thousand, two hundred twenty-one".