2212202111121 has 64 divisors (see below), whose sum is σ = 3461797785600. Its totient is φ = 1392340622400.

The previous prime is 2212202111117. The next prime is 2212202111137. The reversal of 2212202111121 is 1211112022122.

2212202111121 is a `hidden beast` number, since 221 + 220 + 211 + 1 + 12 + 1 = 666.

It is not a de Polignac number, because 2212202111121 - 2² = 2212202111117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212202111094 and 2212202111103.

It is not an unprimeable number, because it can be changed into a prime (2212202111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 195574056 + ... + 195585366.

It is an arithmetic number, because the mean of its divisors is an integer number (54090590400).

Almost surely, 2^{2212202111121} is an apocalyptic number.

It is an amenable number.

2212202111121 is a deficient number, since it is larger than the sum of its proper divisors (1249595674479).

2212202111121 is a wasteful number, since it uses less digits than its factorization.

2212202111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12627 (or 12621 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2212202111121 its reverse (1211112022122), we get a palindrome (3423314133243).

The spelling of 2212202111121 in words is "two trillion, two hundred twelve billion, two hundred two million, one hundred eleven thousand, one hundred twenty-one".