20111214224 has 10 divisors (see below), whose sum is σ = 38965477590. Its totient is φ = 10055607104.

The previous prime is 20111214223. The next prime is 20111214229. The reversal of 20111214224 is 42241211102.

It can be written as a sum of positive squares in only one way, i.e., 14697197824 + 5414016400 = 121232^2 + 73580^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20111214196 and 20111214205.

It is not an unprimeable number, because it can be changed into a prime (20111214223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628475429 + ... + 628475460.

It is an arithmetic number, because the mean of its divisors is an integer number (3896547759).

Almost surely, 2^20111214224 is an apocalyptic number.

It is an amenable number.

20111214224 is a deficient number, since it is larger than the sum of its proper divisors (18854263366).

20111214224 is a wasteful number, since it uses less digits than its factorization.

20111214224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256950897 (or 1256950891 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20111214224 its reverse (42241211102), we get a palindrome (62352425326).

The spelling of 20111214224 in words is "twenty billion, one hundred eleven million, two hundred fourteen thousand, two hundred twenty-four".