121200120322201 has 4 divisors (see below), whose sum is σ = 125379434816100. Its totient is φ = 117020805828304.

The previous prime is 121200120322163. The next prime is 121200120322261. The reversal of 121200120322201 is 102223021002121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103044851512201 + 18155268810000 = 10151101^2 + 4260900^2 .

It is not a de Polignac number, because 121200120322201 - 2⁹ = 121200120321689 is a prime.

It is a super-2 number, since 2×121200120322201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121200120322261) 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, 2089657246906 + ... + 2089657246963.

It is an arithmetic number, because the mean of its divisors is an integer number (31344858704025).

Almost surely, 2^{121200120322201} is an apocalyptic number.

It is an amenable number.

121200120322201 is a deficient number, since it is larger than the sum of its proper divisors (4179314493899).

121200120322201 is an equidigital number, since it uses as much as digits as its factorization.

121200120322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179314493898.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121200120322201 its reverse (102223021002121), we get a palindrome (223423141324322).

The spelling of 121200120322201 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twenty million, three hundred twenty-two thousand, two hundred one".