121231222202321 has 8 divisors (see below), whose sum is σ = 151145419888704. Its totient is φ = 94465887430320.

The previous prime is 121231222202309. The next prime is 121231222202357. The reversal of 121231222202321 is 123202222132121.

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

It is a de Polignac number, because none of the positive numbers 2^k-121231222202321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121231222202381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787215728510 + ... + 787215728663.

It is an arithmetic number, because the mean of its divisors is an integer number (18893177486088).

Almost surely, 2^{121231222202321} is an apocalyptic number.

121231222202321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121231222202321 is a deficient number, since it is larger than the sum of its proper divisors (29914197686383).

121231222202321 is a wasteful number, since it uses less digits than its factorization.

121231222202321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574431457191.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 121231222202321 its reverse (123202222132121), we get a palindrome (244433444334442).

The spelling of 121231222202321 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, two hundred twenty-two million, two hundred two thousand, three hundred twenty-one".