1112022202021 has 4 divisors (see below), whose sum is σ = 1112106033952. Its totient is φ = 1111938370092.

The previous prime is 1112022202009. The next prime is 1112022202139. The reversal of 1112022202021 is 1202022202111.

It is a happy number.

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 1112022202021 - 2⁵ = 1112022201989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112022201986 and 1112022202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112022202001) 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, 41896065 + ... + 41922598.

It is an arithmetic number, because the mean of its divisors is an integer number (278026508488).

Almost surely, 2^{1112022202021} is an apocalyptic number.

It is an amenable number.

1112022202021 is a deficient number, since it is larger than the sum of its proper divisors (83831931).

1112022202021 is an equidigital number, since it uses as much as digits as its factorization.

1112022202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83831930.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1112022202021 its reverse (1202022202111), we get a palindrome (2314044404132).

The spelling of 1112022202021 in words is "one trillion, one hundred twelve billion, twenty-two million, two hundred two thousand, twenty-one".