20124141220 has 12 divisors (see below), whose sum is σ = 42260696604. Its totient is φ = 8049656480.

The previous prime is 20124141211. The next prime is 20124141227. The reversal of 20124141220 is 2214142102.

It can be written as a sum of positive squares in 2 ways, for example, as 9350116416 + 10774024804 = 96696^2 + 103798^2 .

It is not an unprimeable number, because it can be changed into a prime (20124141227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503103511 + ... + 503103550.

It is an arithmetic number, because the mean of its divisors is an integer number (3521724717).

Almost surely, 2^20124141220 is an apocalyptic number.

20124141220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20124141220 is an abundant number, since it is smaller than the sum of its proper divisors (22136555384).

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

20124141220 is a wasteful number, since it uses less digits than its factorization.

20124141220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006207070 (or 1006207068 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20124141220 its reverse (2214142102), we get a palindrome (22338283322).

The spelling of 20124141220 in words is "twenty billion, one hundred twenty-four million, one hundred forty-one thousand, two hundred twenty".