21422300122 has 4 divisors (see below), whose sum is σ = 32133450186. Its totient is φ = 10711150060.

The previous prime is 21422300057. The next prime is 21422300131. The reversal of 21422300122 is 22100322412.

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., 15655264641 + 5767035481 = 125121^2 + 75941^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21422300122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5355575029 + ... + 5355575032.

Almost surely, 2^21422300122 is an apocalyptic number.

21422300122 is a deficient number, since it is larger than the sum of its proper divisors (10711150064).

21422300122 is a wasteful number, since it uses less digits than its factorization.

21422300122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711150063.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21422300122 its reverse (22100322412), we get a palindrome (43522622534).

The spelling of 21422300122 in words is "twenty-one billion, four hundred twenty-two million, three hundred thousand, one hundred twenty-two".