21120222010322 has 4 divisors (see below), whose sum is σ = 31680333015486. Its totient is φ = 10560111005160.

The previous prime is 21120222010259. The next prime is 21120222010339. The reversal of 21120222010322 is 22301022202112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21093269893081 + 26952117241 = 4592741^2 + 164171^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21120222010294 and 21120222010303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280055502579 + ... + 5280055502582.

Almost surely, 2^{21120222010322} is an apocalyptic number.

21120222010322 is a deficient number, since it is larger than the sum of its proper divisors (10560111005164).

21120222010322 is a wasteful number, since it uses less digits than its factorization.

21120222010322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10560111005163.

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

Adding to 21120222010322 its reverse (22301022202112), we get a palindrome (43421244212434).

The spelling of 21120222010322 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, ten thousand, three hundred twenty-two".