20141221203 has 24 divisors (see below), whose sum is σ = 30063461376. Its totient is φ = 12980444400.

The previous prime is 20141221171. The next prime is 20141221207. The reversal of 20141221203 is 30212214102.

It is a happy number.

20141221203 is a `hidden beast` number, since 201 + 41 + 221 + 203 = 666.

It is not a de Polignac number, because 20141221203 - 2⁵ = 20141221171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20141221207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226098 + ... + 302328.

It is an arithmetic number, because the mean of its divisors is an integer number (1252644224).

Almost surely, 2^20141221203 is an apocalyptic number.

20141221203 is a deficient number, since it is larger than the sum of its proper divisors (9922240173).

20141221203 is a wasteful number, since it uses less digits than its factorization.

20141221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77215 (or 77212 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20141221203 its reverse (30212214102), we get a palindrome (50353435305).

The spelling of 20141221203 in words is "twenty billion, one hundred forty-one million, two hundred twenty-one thousand, two hundred three".