1112001022021 has 4 divisors (see below), whose sum is σ = 1113481716544. Its totient is φ = 1110520327500.

The previous prime is 1112001022019. The next prime is 1112001022043. The reversal of 1112001022021 is 1202201002111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1112001022021 - 2¹ = 1112001022019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112001021992 and 1112001022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112001022421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740346135 + ... + 740347636.

It is an arithmetic number, because the mean of its divisors is an integer number (278370429136).

Almost surely, 2^{1112001022021} is an apocalyptic number.

It is an amenable number.

1112001022021 is a deficient number, since it is larger than the sum of its proper divisors (1480694523).

1112001022021 is an equidigital number, since it uses as much as digits as its factorization.

1112001022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480694522.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1112001022021 its reverse (1202201002111), we get a palindrome (2314202024132).

The spelling of 1112001022021 in words is "one trillion, one hundred twelve billion, one million, twenty-two thousand, twenty-one".