2012254220 has 12 divisors (see below), whose sum is σ = 4225733904. Its totient is φ = 804901680.

The previous prime is 2012254169. The next prime is 2012254229. The reversal of 2012254220 is 224522102.

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: 100612711 = 2012254220 / (2 + 0 + 1 + 2 + 2 + 5 + 4 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2012254192 and 2012254201.

It is not an unprimeable number, because it can be changed into a prime (2012254229) 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, 50306336 + ... + 50306375.

It is an arithmetic number, because the mean of its divisors is an integer number (352144492).

Almost surely, 2^2012254220 is an apocalyptic number.

2012254220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012254220 is an abundant number, since it is smaller than the sum of its proper divisors (2213479684).

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

2012254220 is a wasteful number, since it uses less digits than its factorization.

2012254220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100612720 (or 100612718 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2012254220 is about 44858.1566718919. The cubic root of 2012254220 is about 1262.4890371887.

Adding to 2012254220 its reverse (224522102), we get a palindrome (2236776322).

The spelling of 2012254220 in words is "two billion, twelve million, two hundred fifty-four thousand, two hundred twenty".