212101412420 has 24 divisors (see below), whose sum is σ = 464778748224. Its totient is φ = 81151844576.

The previous prime is 212101412401. The next prime is 212101412431. The reversal of 212101412420 is 24214101212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212101412392 and 212101412401.

It is an unprimeable number.

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, 230544554 + ... + 230545473.

It is an arithmetic number, because the mean of its divisors is an integer number (19365781176).

Almost surely, 2^212101412420 is an apocalyptic number.

212101412420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212101412420 is an abundant number, since it is smaller than the sum of its proper divisors (252677335804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212101412420 is a wasteful number, since it uses less digits than its factorization.

212101412420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461090059 (or 461090057 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212101412420 its reverse (24214101212), we get a palindrome (236315513632).

The spelling of 212101412420 in words is "two hundred twelve billion, one hundred one million, four hundred twelve thousand, four hundred twenty".