22012103124 has 72 divisors (see below), whose sum is σ = 62180576640. Its totient is φ = 6507638400.

The previous prime is 22012103101. The next prime is 22012103129. The reversal of 22012103124 is 42130121022.

It is a happy number.

It is a super-2 number, since 2×22012103124² (a number of 21 digits) contains 22 as substring.

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 = 22012103097 and 22012103106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012103129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661644 + ... + 694115.

It is an arithmetic number, because the mean of its divisors is an integer number (863619120).

Almost surely, 2^22012103124 is an apocalyptic number.

It is an amenable number.

22012103124 is an abundant number, since it is smaller than the sum of its proper divisors (40168473516).

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

22012103124 is a wasteful number, since it uses less digits than its factorization.

22012103124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355821 (or 1355816 counting only the distinct ones).

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

Adding to 22012103124 its reverse (42130121022), we get a palindrome (64142224146).

The spelling of 22012103124 in words is "twenty-two billion, twelve million, one hundred three thousand, one hundred twenty-four".