11212211000121 has 8 divisors (see below), whose sum is σ = 15353658306624. Its totient is φ = 7272785513520.

The previous prime is 11212211000099. The next prime is 11212211000183. The reversal of 11212211000121 is 12100011221211.

It is a happy number.

11212211000121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11212211000121 - 2¹⁴ = 11212210983737 is a prime.

It is a super-2 number, since 2×11212211000121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11212211000121.

It is not an unprimeable number, because it can be changed into a prime (11212211000021) 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, 50505454845 + ... + 50505455066.

It is an arithmetic number, because the mean of its divisors is an integer number (1919207288328).

Almost surely, 2^{11212211000121} is an apocalyptic number.

It is an amenable number.

11212211000121 is a deficient number, since it is larger than the sum of its proper divisors (4141447306503).

11212211000121 is a wasteful number, since it uses less digits than its factorization.

11212211000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101010909951.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11212211000121 its reverse (12100011221211), we get a palindrome (23312222221332).

The spelling of 11212211000121 in words is "eleven trillion, two hundred twelve billion, two hundred eleven million, one hundred twenty-one", and thus it is an aban number.