1121020022021 has 8 divisors (see below), whose sum is σ = 1151392448640. Its totient is φ = 1090651521168.

The previous prime is 1121020021987. The next prime is 1121020022047. The reversal of 1121020022021 is 1202200201211.

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 1121020022021 - 2²² = 1121015827717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121020021987 and 1121020022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121020022321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397961 + ... + 1549326.

It is an arithmetic number, because the mean of its divisors is an integer number (143924056080).

Almost surely, 2^{1121020022021} is an apocalyptic number.

It is an amenable number.

1121020022021 is a deficient number, since it is larger than the sum of its proper divisors (30372426619).

1121020022021 is a wasteful number, since it uses less digits than its factorization.

1121020022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962883.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1121020022021 its reverse (1202200201211), we get a palindrome (2323220223232).

The spelling of 1121020022021 in words is "one trillion, one hundred twenty-one billion, twenty million, twenty-two thousand, twenty-one".