21200122120322 has 24 divisors (see below), whose sum is σ = 33243529089036. Its totient is φ = 10139001117696.

The previous prime is 21200122120259. The next prime is 21200122120367. The reversal of 21200122120322 is 22302122100212.

It can be written as a sum of positive squares in 2 ways, for example, as 20932720402441 + 267401717881 = 4575229^2 + 517109^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21200122120294 and 21200122120303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69270098 + ... + 69575474.

Almost surely, 2^{21200122120322} is an apocalyptic number.

21200122120322 is a deficient number, since it is larger than the sum of its proper divisors (12043406968714).

21200122120322 is a wasteful number, since it uses less digits than its factorization.

21200122120322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371042 (or 371019 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21200122120322 its reverse (22302122100212), we get a palindrome (43502244220534).

The spelling of 21200122120322 in words is "twenty-one trillion, two hundred billion, one hundred twenty-two million, one hundred twenty thousand, three hundred twenty-two".