212221031003 has 12 divisors (see below), whose sum is σ = 228527177400. Its totient is φ = 197001292032.

The previous prime is 212221030999. The next prime is 212221031053. The reversal of 212221031003 is 300130122212.

It is not a de Polignac number, because 212221031003 - 2² = 212221030999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212221031053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5008553 + ... + 5050746.

It is an arithmetic number, because the mean of its divisors is an integer number (19043931450).

Almost surely, 2^212221031003 is an apocalyptic number.

212221031003 is a deficient number, since it is larger than the sum of its proper divisors (16306146397).

212221031003 is a wasteful number, since it uses less digits than its factorization.

212221031003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10059406 (or 10059389 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212221031003 its reverse (300130122212), we get a palindrome (512351153215).

The spelling of 212221031003 in words is "two hundred twelve billion, two hundred twenty-one million, thirty-one thousand, three".