4011221023 has 8 divisors (see below), whose sum is σ = 4189458960. Its totient is φ = 3836658240.

The previous prime is 4011221017. The next prime is 4011221051. The reversal of 4011221023 is 3201221104.

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 4011221023 - 2⁵ = 4011220991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4011220988 and 4011221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011222023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916558 + ... + 920923.

It is an arithmetic number, because the mean of its divisors is an integer number (523682370).

Almost surely, 2^4011221023 is an apocalyptic number.

4011221023 is a deficient number, since it is larger than the sum of its proper divisors (178237937).

4011221023 is a wasteful number, since it uses less digits than its factorization.

4011221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837577.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 4011221023 is about 63334.2010528277. The cubic root of 4011221023 is about 1588.8840214381.

Adding to 4011221023 its reverse (3201221104), we get a palindrome (7212442127).

The spelling of 4011221023 in words is "four billion, eleven million, two hundred twenty-one thousand, twenty-three".