1122112212021 has 24 divisors (see below), whose sum is σ = 1645111638144. Its totient is φ = 736868563200.

The previous prime is 1122112211981. The next prime is 1122112212043. The reversal of 1122112212021 is 1202122112211.

It is not a de Polignac number, because 1122112212021 - 2¹⁰ = 1122112210997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122112211985 and 1122112212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122112212521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13950100 + ... + 14030306.

It is an arithmetic number, because the mean of its divisors is an integer number (68546318256).

Almost surely, 2^{1122112212021} is an apocalyptic number.

It is an amenable number.

1122112212021 is a deficient number, since it is larger than the sum of its proper divisors (522999426123).

1122112212021 is a wasteful number, since it uses less digits than its factorization.

1122112212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103481 (or 103478 counting only the distinct ones).

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

Adding to 1122112212021 its reverse (1202122112211), we get a palindrome (2324234324232).

It can be divided in two parts, 112211 and 2212021, that added together give a palindrome (2324232).

The spelling of 1122112212021 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, twenty-one".