1112212212021 has 48 divisors (see below), whose sum is σ = 1664811033600. Its totient is φ = 714766394880.

The previous prime is 1112212211983. The next prime is 1112212212029. The reversal of 1112212212021 is 1202122122111.

It is not a de Polignac number, because 1112212212021 - 2¹⁷ = 1112212080949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112212211985 and 1112212212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112212212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92301405 + ... + 92313453.

It is an arithmetic number, because the mean of its divisors is an integer number (34683563200).

Almost surely, 2^{1112212212021} is an apocalyptic number.

It is an amenable number.

1112212212021 is a deficient number, since it is larger than the sum of its proper divisors (552598821579).

1112212212021 is a wasteful number, since it uses less digits than its factorization.

1112212212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13346 (or 13343 counting only the distinct ones).

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

Adding to 1112212212021 its reverse (1202122122111), we get a palindrome (2314334334132).

The spelling of 1112212212021 in words is "one trillion, one hundred twelve billion, two hundred twelve million, two hundred twelve thousand, twenty-one".