20012222221003 has 16 divisors (see below), whose sum is σ = 21516209280000. Its totient is φ = 18553400514432.

The previous prime is 20012222220931. The next prime is 20012222221081. The reversal of 20012222221003 is 30012222221002.

It is a cyclic number.

It is not a de Polignac number, because 20012222221003 - 2⁹ = 20012222220491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012222221093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6375843 + ... + 8981971.

It is an arithmetic number, because the mean of its divisors is an integer number (1344763080000).

Almost surely, 2^{20012222221003} is an apocalyptic number.

20012222221003 is a deficient number, since it is larger than the sum of its proper divisors (1503987058997).

20012222221003 is a wasteful number, since it uses less digits than its factorization.

20012222221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614794.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20012222221003 its reverse (30012222221002), we get a palindrome (50024444442005).

Subtracting 20012222221003 from its reverse (30012222221002), we obtain a palindrome (9999999999999).

The spelling of 20012222221003 in words is "twenty trillion, twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, three".