22212012203 has 4 divisors (see below), whose sum is σ = 23177751888. Its totient is φ = 21246272520.

The previous prime is 22212012181. The next prime is 22212012209. The reversal of 22212012203 is 30221021222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22212012203 - 2⁶ = 22212012139 is a prime.

It is a super-2 number, since 2×22212012203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212012209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482869808 + ... + 482869853.

It is an arithmetic number, because the mean of its divisors is an integer number (5794437972).

Almost surely, 2^22212012203 is an apocalyptic number.

22212012203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22212012203 is a deficient number, since it is larger than the sum of its proper divisors (965739685).

22212012203 is an equidigital number, since it uses as much as digits as its factorization.

22212012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965739684.

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

Adding to 22212012203 its reverse (30221021222), we get a palindrome (52433033425).

The spelling of 22212012203 in words is "twenty-two billion, two hundred twelve million, twelve thousand, two hundred three".