12121110022201 has 4 divisors (see below), whose sum is σ = 12267147492432. Its totient is φ = 11975072551972.

The previous prime is 12121110022187. The next prime is 12121110022261. The reversal of 12121110022201 is 10222001112121.

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 not a de Polignac number, because 12121110022201 - 2¹⁷ = 12121109891129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121110022261) 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, 73018734991 + ... + 73018735156.

It is an arithmetic number, because the mean of its divisors is an integer number (3066786873108).

Almost surely, 2^{12121110022201} is an apocalyptic number.

It is an amenable number.

12121110022201 is a deficient number, since it is larger than the sum of its proper divisors (146037470231).

12121110022201 is an equidigital number, since it uses as much as digits as its factorization.

12121110022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146037470230.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12121110022201 its reverse (10222001112121), we get a palindrome (22343111134322).

The spelling of 12121110022201 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, twenty-two thousand, two hundred one".