12021413420 has 12 divisors (see below), whose sum is σ = 25244968224. Its totient is φ = 4808565360.

The previous prime is 12021413407. The next prime is 12021413431. The reversal of 12021413420 is 2431412021.

It is a super-2 number, since 2×12021413420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 601070671 = 12021413420 / (1 + 2 + 0 + 2 + 1 + 4 + 1 + 3 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 12021413392 and 12021413401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300535316 + ... + 300535355.

It is an arithmetic number, because the mean of its divisors is an integer number (2103747352).

Almost surely, 2^12021413420 is an apocalyptic number.

12021413420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021413420 is an abundant number, since it is smaller than the sum of its proper divisors (13223554804).

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

12021413420 is a wasteful number, since it uses less digits than its factorization.

12021413420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601070680 (or 601070678 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12021413420 its reverse (2431412021), we get a palindrome (14452825441).

The spelling of 12021413420 in words is "twelve billion, twenty-one million, four hundred thirteen thousand, four hundred twenty".