421211212113 has 16 divisors (see below), whose sum is σ = 563009693696. Its totient is φ = 280110776400.

The previous prime is 421211212099. The next prime is 421211212117. The reversal of 421211212113 is 311212112124.

It is not a de Polignac number, because 421211212113 - 2¹⁰ = 421211211089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421211212113.

It is not an unprimeable number, because it can be changed into a prime (421211212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2448888 + ... + 2615238.

It is an arithmetic number, because the mean of its divisors is an integer number (35188105856).

Almost surely, 2^421211212113 is an apocalyptic number.

It is an amenable number.

421211212113 is a deficient number, since it is larger than the sum of its proper divisors (141798481583).

421211212113 is a wasteful number, since it uses less digits than its factorization.

421211212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168444.

The product of its digits is 192, while the sum is 21.

Adding to 421211212113 its reverse (311212112124), we get a palindrome (732423324237).

The spelling of 421211212113 in words is "four hundred twenty-one billion, two hundred eleven million, two hundred twelve thousand, one hundred thirteen".