4022111021 has 4 divisors (see below), whose sum is σ = 4078760544. Its totient is φ = 3965461500.

The previous prime is 4022110991. The next prime is 4022111069. The reversal of 4022111021 is 1201112204.

It is a happy number.

4022111021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4022111021 - 2⁶ = 4022110957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4022110987 and 4022111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022111221) 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, 28324655 + ... + 28324796.

It is an arithmetic number, because the mean of its divisors is an integer number (1019690136).

Almost surely, 2^4022111021 is an apocalyptic number.

It is an amenable number.

4022111021 is a deficient number, since it is larger than the sum of its proper divisors (56649523).

4022111021 is an equidigital number, since it uses as much as digits as its factorization.

4022111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56649522.

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

The square root of 4022111021 is about 63420.1152711031. The cubic root of 4022111021 is about 1590.3206005411.

Adding to 4022111021 its reverse (1201112204), we get a palindrome (5223223225).

The spelling of 4022111021 in words is "four billion, twenty-two million, one hundred eleven thousand, twenty-one".