121330112201 has 4 divisors (see below), whose sum is σ = 127715907600. Its totient is φ = 114944316804.

The previous prime is 121330112173. The next prime is 121330112207. The reversal of 121330112201 is 102211033121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121330112201 is a prime.

It is a super-2 number, since 2×121330112201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121330112201.

It is not an unprimeable number, because it can be changed into a prime (121330112207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3192897671 + ... + 3192897708.

It is an arithmetic number, because the mean of its divisors is an integer number (31928976900).

Almost surely, 2^121330112201 is an apocalyptic number.

It is an amenable number.

121330112201 is a deficient number, since it is larger than the sum of its proper divisors (6385795399).

121330112201 is an equidigital number, since it uses as much as digits as its factorization.

121330112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385795398.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121330112201 its reverse (102211033121), we get a palindrome (223541145322).

The spelling of 121330112201 in words is "one hundred twenty-one billion, three hundred thirty million, one hundred twelve thousand, two hundred one".