2003213222121 has 8 divisors (see below), whose sum is σ = 2670957573760. Its totient is φ = 1335472175952.

The previous prime is 2003213222111. The next prime is 2003213222161. The reversal of 2003213222121 is 1212223123002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2003213222121 - 2¹⁴ = 2003213205737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003213222111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635216 + ... + 2584638.

It is an arithmetic number, because the mean of its divisors is an integer number (333869696720).

Almost surely, 2^{2003213222121} is an apocalyptic number.

It is an amenable number.

2003213222121 is a deficient number, since it is larger than the sum of its proper divisors (667744351639).

2003213222121 is an equidigital number, since it uses as much as digits as its factorization.

2003213222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652735.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2003213222121 its reverse (1212223123002), we get a palindrome (3215436345123).

The spelling of 2003213222121 in words is "two trillion, three billion, two hundred thirteen million, two hundred twenty-two thousand, one hundred twenty-one".