20111202412 has 48 divisors (see below), whose sum is σ = 41783938560. Its totient is φ = 8290396800.

The previous prime is 20111202401. The next prime is 20111202413. The reversal of 20111202412 is 21420211102.

It is not an unprimeable number, because it can be changed into a prime (20111202413) 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 15 ways as a sum of consecutive naturals, for example, 41862 + ... + 204877.

It is an arithmetic number, because the mean of its divisors is an integer number (870498720).

Almost surely, 2^20111202412 is an apocalyptic number.

It is an amenable number.

20111202412 is an abundant number, since it is smaller than the sum of its proper divisors (21672736148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111202412 is a wasteful number, since it uses less digits than its factorization.

20111202412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246862 (or 246860 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20111202412 its reverse (21420211102), we get a palindrome (41531413514).

The spelling of 20111202412 in words is "twenty billion, one hundred eleven million, two hundred two thousand, four hundred twelve".