4020012223 has 4 divisors (see below), whose sum is σ = 4128661240. Its totient is φ = 3911363208.

The previous prime is 4020012187. The next prime is 4020012257. The reversal of 4020012223 is 3222100204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4020012223 - 2⁹ = 4020011711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4020012197 and 4020012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020012523) 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, 54324453 + ... + 54324526.

It is an arithmetic number, because the mean of its divisors is an integer number (1032165310).

Almost surely, 2^4020012223 is an apocalyptic number.

4020012223 is a deficient number, since it is larger than the sum of its proper divisors (108649017).

4020012223 is a wasteful number, since it uses less digits than its factorization.

4020012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108649016.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4020012223 is about 63403.5663271397. The cubic root of 4020012223 is about 1590.0439346799.

Adding to 4020012223 its reverse (3222100204), we get a palindrome (7242112427).

The spelling of 4020012223 in words is "four billion, twenty million, twelve thousand, two hundred twenty-three".