121021212200201 has 8 divisors (see below), whose sum is σ = 123306334166664. Its totient is φ = 118736153303040.

The previous prime is 121021212200191. The next prime is 121021212200263. The reversal of 121021212200201 is 102002212120121.

It can be written as a sum of positive squares in 4 ways, for example, as 2621808640000 + 118399403560201 = 1619200^2 + 10881149^2 .

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 121021212200201 - 2²⁶ = 121021145091337 is a prime.

It is a super-2 number, since 2×121021212200201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121021212200201.

It is not an unprimeable number, because it can be changed into a prime (121021212200401) 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, 11884430 + ... + 19577591.

It is an arithmetic number, because the mean of its divisors is an integer number (15413291770833).

Almost surely, 2^{121021212200201} is an apocalyptic number.

It is an amenable number.

121021212200201 is a deficient number, since it is larger than the sum of its proper divisors (2285121966463).

121021212200201 is an equidigital number, since it uses as much as digits as its factorization.

121021212200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31534651.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121021212200201 its reverse (102002212120121), we get a palindrome (223023424320322).

The spelling of 121021212200201 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twelve million, two hundred thousand, two hundred one".