121210012201 has 4 divisors (see below), whose sum is σ = 124166354004. Its totient is φ = 118253670400.

The previous prime is 121210012181. The next prime is 121210012211. The reversal of 121210012201 is 102210012121.

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 8770509801 + 112439502400 = 93651^2 + 335320^2 .

It is a cyclic number.

It is not a de Polignac number, because 121210012201 - 2⁵ = 121210012169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210012211) 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, 1478170840 + ... + 1478170921.

It is an arithmetic number, because the mean of its divisors is an integer number (31041588501).

Almost surely, 2^121210012201 is an apocalyptic number.

It is an amenable number.

121210012201 is a deficient number, since it is larger than the sum of its proper divisors (2956341803).

121210012201 is an equidigital number, since it uses as much as digits as its factorization.

121210012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956341802.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121210012201 its reverse (102210012121), we get a palindrome (223420024322).

The spelling of 121210012201 in words is "one hundred twenty-one billion, two hundred ten million, twelve thousand, two hundred one".