121230211331221 has 8 divisors (see below), whose sum is σ = 121930197963264. Its totient is φ = 120530904631680.

The previous prime is 121230211331219. The next prime is 121230211331231. The reversal of 121230211331221 is 122133112032121.

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 121230211331221 - 2¹ = 121230211331219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230211331231) 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, 169625500 + ... + 170338693.

It is an arithmetic number, because the mean of its divisors is an integer number (15241274745408).

Almost surely, 2^{121230211331221} is an apocalyptic number.

It is an amenable number.

121230211331221 is a deficient number, since it is larger than the sum of its proper divisors (699986632043).

121230211331221 is a wasteful number, since it uses less digits than its factorization.

121230211331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339966251.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 121230211331221 its reverse (122133112032121), we get a palindrome (243363323363342).

The spelling of 121230211331221 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred eleven million, three hundred thirty-one thousand, two hundred twenty-one".