2003222012220 has 576 divisors, whose sum is σ = 7516630638720. Its totient is φ = 439805583360.

The previous prime is 2003222012213. The next prime is 2003222012299. The reversal of 2003222012220 is 222102223002.

2003222012220 is a `hidden beast` number, since 200 + 322 + 2 + 0 + 122 + 20 = 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 = 2003222012193 and 2003222012202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 44997012 + ... + 45041508.

It is an arithmetic number, because the mean of its divisors is an integer number (13049705970).

Almost surely, 2^{2003222012220} is an apocalyptic number.

2003222012220 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 2003222012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3758315319360).

2003222012220 is an abundant number, since it is smaller than the sum of its proper divisors (5513408626500).

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

2003222012220 is a wasteful number, since it uses less digits than its factorization.

2003222012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44603 (or 44584 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 2003222012220 its reverse (222102223002), we get a palindrome (2225324235222).

The spelling of 2003222012220 in words is "two trillion, three billion, two hundred twenty-two million, twelve thousand, two hundred twenty".