21202022320203 has 8 divisors (see below), whose sum is σ = 28425547420816. Its totient is φ = 14056589383200.

The previous prime is 21202022320181. The next prime is 21202022320207. The reversal of 21202022320203 is 30202322020212.

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

It is not a de Polignac number, because 21202022320203 - 2⁶ = 21202022320139 is a prime.

It is a super-2 number, since 2×21202022320203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21202022320203.

It is not an unprimeable number, because it can be changed into a prime (21202022320207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19523040268 + ... + 19523041353.

It is an arithmetic number, because the mean of its divisors is an integer number (3553193427602).

Almost surely, 2^{21202022320203} is an apocalyptic number.

21202022320203 is a deficient number, since it is larger than the sum of its proper divisors (7223525100613).

21202022320203 is a wasteful number, since it uses less digits than its factorization.

21202022320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39046081805.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 21202022320203 its reverse (30202322020212), we get a palindrome (51404344340415).

The spelling of 21202022320203 in words is "twenty-one trillion, two hundred two billion, twenty-two million, three hundred twenty thousand, two hundred three".