2212144020 has 120 divisors (see below), whose sum is σ = 6958274400. Its totient is φ = 588316608.

The previous prime is 2212144009. The next prime is 2212144063. The reversal of 2212144020 is 204412122.

2212144020 is a `hidden beast` number, since 221 + 2 + 1 + 440 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2212143984 and 2212144002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 677151 + ... + 680409.

It is an arithmetic number, because the mean of its divisors is an integer number (57985620).

Almost surely, 2^2212144020 is an apocalyptic number.

2212144020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212144020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3479137200).

2212144020 is an abundant number, since it is smaller than the sum of its proper divisors (4746130380).

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

2212144020 is a wasteful number, since it uses less digits than its factorization.

2212144020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699 (or 3688 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2212144020 is about 47033.4351286401. The cubic root of 2212144020 is about 1302.9801492118.

Adding to 2212144020 its reverse (204412122), we get a palindrome (2416556142).

The spelling of 2212144020 in words is "two billion, two hundred twelve million, one hundred forty-four thousand, twenty".