2001223022 has 16 divisors (see below), whose sum is σ = 3048152352. Its totient is φ = 985219200.

The previous prime is 2001222991. The next prime is 2001223057. The reversal of 2001223022 is 2203221002.

It is a junction number, because it is equal to n+sod(n) for n = 2001222988 and 2001223006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76343 + ... + 99149.

It is an arithmetic number, because the mean of its divisors is an integer number (190509522).

Almost surely, 2^2001223022 is an apocalyptic number.

2001223022 is a deficient number, since it is larger than the sum of its proper divisors (1046929330).

2001223022 is a wasteful number, since it uses less digits than its factorization.

2001223022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23483.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2001223022 is about 44735.0312618646. The cubic root of 2001223022 is about 1260.1778160906.

Adding to 2001223022 its reverse (2203221002), we get a palindrome (4204444024).

It can be divided in two parts, 20012 and 23022, that added together give a palindrome (43034).

The spelling of 2001223022 in words is "two billion, one million, two hundred twenty-three thousand, twenty-two".