212442320401 has 8 divisors (see below), whose sum is σ = 214037861184. Its totient is φ = 210850630320.

The previous prime is 212442320393. The next prime is 212442320471. The reversal of 212442320401 is 104023244212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212442320401 - 2³ = 212442320393 is a prime.

It is a super-2 number, since 2×212442320401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212442320471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851875 + ... + 1072648.

It is an arithmetic number, because the mean of its divisors is an integer number (26754732648).

Almost surely, 2^212442320401 is an apocalyptic number.

It is an amenable number.

212442320401 is a deficient number, since it is larger than the sum of its proper divisors (1595540783).

212442320401 is a wasteful number, since it uses less digits than its factorization.

212442320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925351.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 212442320401 its reverse (104023244212), we get a palindrome (316465564613).

The spelling of 212442320401 in words is "two hundred twelve billion, four hundred forty-two million, three hundred twenty thousand, four hundred one".