2003222121020 has 48 divisors (see below), whose sum is σ = 4346731468800. Its totient is φ = 774679594560.

The previous prime is 2003222121007. The next prime is 2003222121023. The reversal of 2003222121020 is 201212223002.

It is a super-3 number, since 3×2003222121020³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2003222121020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003222121023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 953600 + ... + 2217159.

It is an arithmetic number, because the mean of its divisors is an integer number (90556905600).

Almost surely, 2^{2003222121020} is an apocalyptic number.

2003222121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003222121020 is an abundant number, since it is smaller than the sum of its proper divisors (2343509347780).

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

2003222121020 is a wasteful number, since it uses less digits than its factorization.

2003222121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171818 (or 3171816 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2003222121020 its reverse (201212223002), we get a palindrome (2204434344022).

The spelling of 2003222121020 in words is "two trillion, three billion, two hundred twenty-two million, one hundred twenty-one thousand, twenty".