12121000012211 has 4 divisors (see below), whose sum is σ = 12241009913424. Its totient is φ = 12000990111000.

The previous prime is 12121000012139. The next prime is 12121000012309. The reversal of 12121000012211 is 11221000012121.

12121000012211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12121000012211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121000017211) 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, 60004950455 + ... + 60004950656.

It is an arithmetic number, because the mean of its divisors is an integer number (3060252478356).

Almost surely, 2^{12121000012211} is an apocalyptic number.

12121000012211 is a deficient number, since it is larger than the sum of its proper divisors (120009901213).

12121000012211 is a wasteful number, since it uses less digits than its factorization.

12121000012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120009901212.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12121000012211 its reverse (11221000012121), we get a palindrome (23342000024332).

The spelling of 12121000012211 in words is "twelve trillion, one hundred twenty-one billion, twelve thousand, two hundred eleven".