20212122203 has 8 divisors (see below), whose sum is σ = 24876458208. Its totient is φ = 15992008704.

The previous prime is 20212122193. The next prime is 20212122209. The reversal of 20212122203 is 30222121202.

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

It is not a de Polignac number, because 20212122203 - 2¹⁸ = 20211860059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20212122209) 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 7 ways as a sum of consecutive naturals, for example, 111055526 + ... + 111055707.

It is an arithmetic number, because the mean of its divisors is an integer number (3109557276).

Almost surely, 2^20212122203 is an apocalyptic number.

20212122203 is a deficient number, since it is larger than the sum of its proper divisors (4664336005).

20212122203 is a wasteful number, since it uses less digits than its factorization.

20212122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222111253.

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

Adding to 20212122203 its reverse (30222121202), we get a palindrome (50434243405).

The spelling of 20212122203 in words is "twenty billion, two hundred twelve million, one hundred twenty-two thousand, two hundred three".