20144212132 has 72 divisors (see below), whose sum is σ = 39227126400. Its totient is φ = 9043964160.

The previous prime is 20144212073. The next prime is 20144212139. The reversal of 20144212132 is 23121244102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20144212139) 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, 24009369 + ... + 24010207.

It is an arithmetic number, because the mean of its divisors is an integer number (544821200).

Almost surely, 2^20144212132 is an apocalyptic number.

20144212132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20144212132 is a deficient number, since it is larger than the sum of its proper divisors (19082914268).

20144212132 is a wasteful number, since it uses less digits than its factorization.

20144212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20144212132 its reverse (23121244102), we get a palindrome (43265456234).

The spelling of 20144212132 in words is "twenty billion, one hundred forty-four million, two hundred twelve thousand, one hundred thirty-two".