11120022021 has 4 divisors (see below), whose sum is σ = 14826696032. Its totient is φ = 7413348012.

The previous prime is 11120022013. The next prime is 11120022029. The reversal of 11120022021 is 12022002111.

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 an interprime number because it is at equal distance from previous prime (11120022013) and next prime (11120022029).

It is not a de Polignac number, because 11120022021 - 2³ = 11120022013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120021988 and 11120022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120022029) 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, 1853337001 + ... + 1853337006.

It is an arithmetic number, because the mean of its divisors is an integer number (3706674008).

Almost surely, 2^11120022021 is an apocalyptic number.

It is an amenable number.

11120022021 is a deficient number, since it is larger than the sum of its proper divisors (3706674011).

11120022021 is an equidigital number, since it uses as much as digits as its factorization.

11120022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706674010.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11120022021 its reverse (12022002111), we get a palindrome (23142024132).

The spelling of 11120022021 in words is "eleven billion, one hundred twenty million, twenty-two thousand, twenty-one".