2212212011121 has 48 divisors (see below), whose sum is σ = 3695263213824. Its totient is φ = 1249153062912.

The previous prime is 2212212011089. The next prime is 2212212011123. The reversal of 2212212011121 is 1211102122122.

2212212011121 is a `hidden beast` number, since 221 + 221 + 201 + 1 + 1 + 21 = 666.

It is not a de Polignac number, because 2212212011121 - 2⁵ = 2212212011089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212212011094 and 2212212011103.

It is not an unprimeable number, because it can be changed into a prime (2212212011123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3674061 + ... + 4233573.

It is an arithmetic number, because the mean of its divisors is an integer number (76984650288).

Almost surely, 2^{2212212011121} is an apocalyptic number.

2212212011121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2212212011121 is a deficient number, since it is larger than the sum of its proper divisors (1483051202703).

2212212011121 is a wasteful number, since it uses less digits than its factorization.

2212212011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560270 (or 560267 counting only the distinct ones).

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

Adding to 2212212011121 its reverse (1211102122122), we get a palindrome (3423314133243).

The spelling of 2212212011121 in words is "two trillion, two hundred twelve billion, two hundred twelve million, eleven thousand, one hundred twenty-one".