121111220303121 has 8 divisors (see below), whose sum is σ = 161547618754944. Its totient is φ = 80707817693360.

The previous prime is 121111220303093. The next prime is 121111220303123. The reversal of 121111220303121 is 121303022111121.

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 121111220303121 - 2¹³ = 121111220294929 is a prime.

It is a super-2 number, since 2×121111220303121² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121111220303123) 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, 8248951950 + ... + 8248966631.

It is an arithmetic number, because the mean of its divisors is an integer number (20193452344368).

Almost surely, 2^{121111220303121} is an apocalyptic number.

It is an amenable number.

121111220303121 is a deficient number, since it is larger than the sum of its proper divisors (40436398451823).

121111220303121 is a wasteful number, since it uses less digits than its factorization.

121111220303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16497921031.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 121111220303121 its reverse (121303022111121), we get a palindrome (242414242414242).

The spelling of 121111220303121 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred twenty million, three hundred three thousand, one hundred twenty-one".