121122112201201 has 4 divisors (see below), whose sum is σ = 123107720598004. Its totient is φ = 119136503804400.

The previous prime is 121122112201193. The next prime is 121122112201219. The reversal of 121122112201201 is 102102211221121.

It is a happy number.

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 24124747773025 + 96997364428176 = 4911695^2 + 9848724^2 .

It is a cyclic number.

It is not a de Polignac number, because 121122112201201 - 2³ = 121122112201193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122112201501) 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, 992804198310 + ... + 992804198431.

It is an arithmetic number, because the mean of its divisors is an integer number (30776930149501).

Almost surely, 2^{121122112201201} is an apocalyptic number.

It is an amenable number.

121122112201201 is a deficient number, since it is larger than the sum of its proper divisors (1985608396803).

121122112201201 is an equidigital number, since it uses as much as digits as its factorization.

121122112201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985608396802.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121122112201201 its reverse (102102211221121), we get a palindrome (223224323422322).

The spelling of 121122112201201 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred twelve million, two hundred one thousand, two hundred one".