2221212203 has 8 divisors (see below), whose sum is σ = 2539541472. Its totient is φ = 1903136256.

The previous prime is 2221212179. The next prime is 2221212211. The reversal of 2221212203 is 3022121222.

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

It is not a de Polignac number, because 2221212203 - 2¹⁴ = 2221195819 is a prime.

It is a super-2 number, since 2×2221212203² = 9867567301512226418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221212223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44150 + ... + 79947.

It is an arithmetic number, because the mean of its divisors is an integer number (317442684).

Almost surely, 2^2221212203 is an apocalyptic number.

2221212203 is a deficient number, since it is larger than the sum of its proper divisors (318329269).

2221212203 is a wasteful number, since it uses less digits than its factorization.

2221212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126661.

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

The square root of 2221212203 is about 47129.7379899358. The cubic root of 2221212203 is about 1304.7581458507.

Adding to 2221212203 its reverse (3022121222), we get a palindrome (5243333425).

The spelling of 2221212203 in words is "two billion, two hundred twenty-one million, two hundred twelve thousand, two hundred three".