20021222321103 has 32 divisors (see below), whose sum is σ = 27481170157056. Its totient is φ = 12958147375488.

The previous prime is 20021222321059. The next prime is 20021222321141. The reversal of 20021222321103 is 30112322212002.

It is not a de Polignac number, because 20021222321103 - 2¹⁴ = 20021222304719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20021222321103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021222321203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558656701 + ... + 558692537.

It is an arithmetic number, because the mean of its divisors is an integer number (858786567408).

Almost surely, 2^{20021222321103} is an apocalyptic number.

20021222321103 is a deficient number, since it is larger than the sum of its proper divisors (7459947835953).

20021222321103 is a wasteful number, since it uses less digits than its factorization.

20021222321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61983.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20021222321103 its reverse (30112322212002), we get a palindrome (50133544533105).

The spelling of 20021222321103 in words is "twenty trillion, twenty-one billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred three".