20012111204 has 24 divisors (see below), whose sum is σ = 37087225560. Its totient is φ = 9415950336.

The previous prime is 20012111201. The next prime is 20012111261. The reversal of 20012111204 is 40211121002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13971712804 + 6040398400 = 118202^2 + 77720^2 .

It is not an unprimeable number, because it can be changed into a prime (20012111201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481124 + ... + 521060.

It is an arithmetic number, because the mean of its divisors is an integer number (1545301065).

Almost surely, 2^20012111204 is an apocalyptic number.

It is an amenable number.

20012111204 is a deficient number, since it is larger than the sum of its proper divisors (17075114356).

20012111204 is a wasteful number, since it uses less digits than its factorization.

20012111204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47327 (or 47325 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20012111204 its reverse (40211121002), we get a palindrome (60223232206).

The spelling of 20012111204 in words is "twenty billion, twelve million, one hundred eleven thousand, two hundred four".