21122434301 has 4 divisors (see below), whose sum is σ = 21274394400. Its totient is φ = 20970474204.

The previous prime is 21122434283. The next prime is 21122434303. The reversal of 21122434301 is 10343422112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21122434301 - 2¹⁴ = 21122417917 is a prime.

It is a super-2 number, since 2×21122434301² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122434303) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 75979841 + ... + 75980118.

It is an arithmetic number, because the mean of its divisors is an integer number (5318598600).

Almost surely, 2^21122434301 is an apocalyptic number.

It is an amenable number.

21122434301 is a deficient number, since it is larger than the sum of its proper divisors (151960099).

21122434301 is a wasteful number, since it uses less digits than its factorization.

21122434301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151960098.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21122434301 its reverse (10343422112), we get a palindrome (31465856413).

The spelling of 21122434301 in words is "twenty-one billion, one hundred twenty-two million, four hundred thirty-four thousand, three hundred one".