102420021222424 has 16 divisors (see below), whose sum is σ = 192471033116520. Its totient is φ = 51094412391360.

The previous prime is 102420021222397. The next prime is 102420021222437. The reversal of 102420021222424 is 424222120024201.

102420021222424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 102420021222392 and 102420021222401.

It is a congruent number.

It is an unprimeable number.

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, 14449773717 + ... + 14449780804.

Almost surely, 2^{102420021222424} is an apocalyptic number.

It is an amenable number.

102420021222424 is a deficient number, since it is larger than the sum of its proper divisors (90051011894096).

102420021222424 is a wasteful number, since it uses less digits than its factorization.

102420021222424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28899554970 (or 28899554966 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 102420021222424 its reverse (424222120024201), we get a palindrome (526642141246625).

The spelling of 102420021222424 in words is "one hundred two trillion, four hundred twenty billion, twenty-one million, two hundred twenty-two thousand, four hundred twenty-four".