20001211232 has 48 divisors (see below), whose sum is σ = 42232019760. Its totient is φ = 9295483392.

The previous prime is 20001211211. The next prime is 20001211273. The reversal of 20001211232 is 23211210002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278123 + ... + 342570.

It is an arithmetic number, because the mean of its divisors is an integer number (879833745).

Almost surely, 2^20001211232 is an apocalyptic number.

It is an amenable number.

20001211232 is an abundant number, since it is smaller than the sum of its proper divisors (22230808528).

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

20001211232 is a wasteful number, since it uses less digits than its factorization.

20001211232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620775 (or 620767 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20001211232 its reverse (23211210002), we get a palindrome (43212421234).

The spelling of 20001211232 in words is "twenty billion, one million, two hundred eleven thousand, two hundred thirty-two".