20012122203 has 16 divisors (see below), whose sum is σ = 28256825376. Its totient is φ = 12554662400.

The previous prime is 20012122177. The next prime is 20012122223. The reversal of 20012122203 is 30222121002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20012122203 - 2¹⁰ = 20012121179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012122223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342853 + ... + 396953.

It is an arithmetic number, because the mean of its divisors is an integer number (1766051586).

Almost surely, 2^20012122203 is an apocalyptic number.

20012122203 is a deficient number, since it is larger than the sum of its proper divisors (8244703173).

20012122203 is a wasteful number, since it uses less digits than its factorization.

20012122203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61374.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20012122203 its reverse (30222121002), we get a palindrome (50234243205).

The spelling of 20012122203 in words is "twenty billion, twelve million, one hundred twenty-two thousand, two hundred three".