12210011103121 has 12 divisors (see below), whose sum is σ = 13221599501532. Its totient is φ = 11270687253696.

The previous prime is 12210011103107. The next prime is 12210011103181. The reversal of 12210011103121 is 12130111001221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3322457663121 + 8887553440000 = 1822761^2 + 2981200^2 .

It is not a de Polignac number, because 12210011103121 - 2⁵ = 12210011103089 is a prime.

It is a super-2 number, since 2×12210011103121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210011103095 and 12210011103104.

It is not an unprimeable number, because it can be changed into a prime (12210011103181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28959595 + ... + 29378191.

It is an arithmetic number, because the mean of its divisors is an integer number (1101799958461).

Almost surely, 2^{12210011103121} is an apocalyptic number.

It is an amenable number.

12210011103121 is a deficient number, since it is larger than the sum of its proper divisors (1011588398411).

12210011103121 is a wasteful number, since it uses less digits than its factorization.

12210011103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591220 (or 591207 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12210011103121 its reverse (12130111001221), we get a palindrome (24340122104342).

The spelling of 12210011103121 in words is "twelve trillion, two hundred ten billion, eleven million, one hundred three thousand, one hundred twenty-one".