2212121220003 has 24 divisors (see below), whose sum is σ = 3262700137008. Its totient is φ = 1443928280832.

The previous prime is 2212121219969. The next prime is 2212121220007. The reversal of 2212121220003 is 3000221212122.

It is not a de Polignac number, because 2212121220003 - 2²⁰ = 2212120171427 is a prime.

It is a super-2 number, since 2×2212121220003² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2212121220007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12198325 + ... + 12378342.

It is an arithmetic number, because the mean of its divisors is an integer number (135945839042).

Almost surely, 2^{2212121220003} is an apocalyptic number.

2212121220003 is a deficient number, since it is larger than the sum of its proper divisors (1050578917005).

2212121220003 is a wasteful number, since it uses less digits than its factorization.

2212121220003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24576883 (or 24576880 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2212121220003 its reverse (3000221212122), we get a palindrome (5212342432125).

The spelling of 2212121220003 in words is "two trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twenty thousand, three".