52122211421 has 4 divisors (see below), whose sum is σ = 59568241632. Its totient is φ = 44676181212.

The previous prime is 52122211417. The next prime is 52122211441. The reversal of 52122211421 is 12411222125.

52122211421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52122211421 - 2² = 52122211417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52122211411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3723015095 + ... + 3723015108.

It is an arithmetic number, because the mean of its divisors is an integer number (14892060408).

Almost surely, 2^52122211421 is an apocalyptic number.

It is an amenable number.

52122211421 is a deficient number, since it is larger than the sum of its proper divisors (7446030211).

52122211421 is an equidigital number, since it uses as much as digits as its factorization.

52122211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446030210.

The product of its digits is 640, while the sum is 23.

Adding to 52122211421 its reverse (12411222125), we get a palindrome (64533433546).

The spelling of 52122211421 in words is "fifty-two billion, one hundred twenty-two million, two hundred eleven thousand, four hundred twenty-one".