20121314224 has 20 divisors (see below), whose sum is σ = 42529141800. Its totient is φ = 9146051840.

The previous prime is 20121314221. The next prime is 20121314249. The reversal of 20121314224 is 42241312102.

It is a super-2 number, since 2×20121314224² (a number of 21 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 20121314195 and 20121314204.

It is not an unprimeable number, because it can be changed into a prime (20121314221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57162649 + ... + 57163000.

It is an arithmetic number, because the mean of its divisors is an integer number (2126457090).

Almost surely, 2^20121314224 is an apocalyptic number.

It is an amenable number.

20121314224 is an abundant number, since it is smaller than the sum of its proper divisors (22407827576).

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

20121314224 is a wasteful number, since it uses less digits than its factorization.

20121314224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114325668 (or 114325662 counting only the distinct ones).

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

Adding to 20121314224 its reverse (42241312102), we get a palindrome (62362626326).

The spelling of 20121314224 in words is "twenty billion, one hundred twenty-one million, three hundred fourteen thousand, two hundred twenty-four".