20112103224 has 64 divisors (see below), whose sum is σ = 55884794400. Its totient is φ = 6701893632.

The previous prime is 20112103217. The next prime is 20112103243. The reversal of 20112103224 is 42230121102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20112103197 and 20112103206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755224 + ... + 781400.

Almost surely, 2^20112103224 is an apocalyptic number.

20112103224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20112103224 is an abundant number, since it is smaller than the sum of its proper divisors (35772691176).

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

20112103224 is a wasteful number, since it uses less digits than its factorization.

20112103224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29749 (or 29739 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20112103224 its reverse (42230121102), we get a palindrome (62342224326).

The spelling of 20112103224 in words is "twenty billion, one hundred twelve million, one hundred three thousand, two hundred twenty-four".