1121112022021 has 8 divisors (see below), whose sum is σ = 1123408188000. Its totient is φ = 1118816054832.

The previous prime is 1121112021971. The next prime is 1121112022039. The reversal of 1121112022021 is 1202202111211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121112022021 - 2¹⁹ = 1121111497733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121112021986 and 1121112022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121112022421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17614371 + ... + 17677903.

It is an arithmetic number, because the mean of its divisors is an integer number (140426023500).

Almost surely, 2^{1121112022021} is an apocalyptic number.

It is an amenable number.

1121112022021 is a deficient number, since it is larger than the sum of its proper divisors (2296165979).

1121112022021 is an equidigital number, since it uses as much as digits as its factorization.

1121112022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99395.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1121112022021 its reverse (1202202111211), we get a palindrome (2323314133232).

It can be divided in two parts, 11211 and 12022021, that multiplied together give a palindrome (134778877431).

The spelling of 1121112022021 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, twenty-one".