2001223502 has 16 divisors (see below), whose sum is σ = 3070699632. Its totient is φ = 977808000.

The previous prime is 2001223453. The next prime is 2001223529. The reversal of 2001223502 is 2053221002.

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, 11003 + ... + 64214.

It is an arithmetic number, because the mean of its divisors is an integer number (191918727).

Almost surely, 2^2001223502 is an apocalyptic number.

2001223502 is a deficient number, since it is larger than the sum of its proper divisors (1069476130).

2001223502 is a wasteful number, since it uses less digits than its factorization.

2001223502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75523.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2001223502 is about 44735.0366267873. The cubic root of 2001223502 is about 1260.1779168432.

Adding to 2001223502 its reverse (2053221002), we get a palindrome (4054444504).

The spelling of 2001223502 in words is "two billion, one million, two hundred twenty-three thousand, five hundred two".