21302201122 has 4 divisors (see below), whose sum is σ = 31953301686. Its totient is φ = 10651100560.

The previous prime is 21302201117. The next prime is 21302201147. The reversal of 21302201122 is 22110220312.

It is a happy number.

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., 18401193801 + 2901007321 = 135651^2 + 53861^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21302201096 and 21302201105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325550279 + ... + 5325550282.

Almost surely, 2^21302201122 is an apocalyptic number.

21302201122 is a deficient number, since it is larger than the sum of its proper divisors (10651100564).

21302201122 is a wasteful number, since it uses less digits than its factorization.

21302201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651100563.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21302201122 its reverse (22110220312), we get a palindrome (43412421434).

The spelling of 21302201122 in words is "twenty-one billion, three hundred two million, two hundred one thousand, one hundred twenty-two".