102212124200421 has 16 divisors (see below), whose sum is σ = 137774146124160. Its totient is φ = 67399632748800.

The previous prime is 102212124200413. The next prime is 102212124200443. The reversal of 102212124200421 is 124002421212201.

It is not a de Polignac number, because 102212124200421 - 2³ = 102212124200413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102212124200391 and 102212124200400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212125200421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484087216 + ... + 484298313.

It is an arithmetic number, because the mean of its divisors is an integer number (8610884132760).

Almost surely, 2^{102212124200421} is an apocalyptic number.

It is an amenable number.

102212124200421 is a deficient number, since it is larger than the sum of its proper divisors (35562021923739).

102212124200421 is a wasteful number, since it uses less digits than its factorization.

102212124200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968385916.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 102212124200421 its reverse (124002421212201), we get a palindrome (226214545412622).

The spelling of 102212124200421 in words is "one hundred two trillion, two hundred twelve billion, one hundred twenty-four million, two hundred thousand, four hundred twenty-one".