20403001222 has 8 divisors (see below), whose sum is σ = 30665835000. Its totient is φ = 10181056224.

The previous prime is 20403001219. The next prime is 20403001247. The reversal of 20403001222 is 22210030402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20403001196 and 20403001205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10220947 + ... + 10222942.

It is an arithmetic number, because the mean of its divisors is an integer number (3833229375).

Almost surely, 2^20403001222 is an apocalyptic number.

20403001222 is a deficient number, since it is larger than the sum of its proper divisors (10262833778).

20403001222 is a wasteful number, since it uses less digits than its factorization.

20403001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20444390.

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

Adding to 20403001222 its reverse (22210030402), we get a palindrome (42613031624).

The spelling of 20403001222 in words is "twenty billion, four hundred three million, one thousand, two hundred twenty-two".