121111245150321 has 8 divisors (see below), whose sum is σ = 161587688873760. Its totient is φ = 80687815763552.

The previous prime is 121111245150319. The next prime is 121111245150419. The reversal of 121111245150321 is 123051542111121.

It is a happy number.

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 121111245150321 - 2¹ = 121111245150319 is a prime.

It is a super-2 number, since 2×121111245150321² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121111245150121) 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, 13253578836 + ... + 13253587973.

It is an arithmetic number, because the mean of its divisors is an integer number (20198461109220).

Almost surely, 2^{121111245150321} is an apocalyptic number.

It is an amenable number.

121111245150321 is a deficient number, since it is larger than the sum of its proper divisors (40476443723439).

121111245150321 is a wasteful number, since it uses less digits than its factorization.

121111245150321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26507168335.

The product of its (nonzero) digits is 2400, while the sum is 30.

Adding to 121111245150321 its reverse (123051542111121), we get a palindrome (244162787261442).

The spelling of 121111245150321 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred forty-five million, one hundred fifty thousand, three hundred twenty-one".