22112205140 has 24 divisors (see below), whose sum is σ = 47933555712. Its totient is φ = 8559563040.

The previous prime is 22112205097. The next prime is 22112205151. The reversal of 22112205140 is 4150221122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17831804 + ... + 17833043.

It is an arithmetic number, because the mean of its divisors is an integer number (1997231488).

Almost surely, 2^22112205140 is an apocalyptic number.

22112205140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112205140 is an abundant number, since it is smaller than the sum of its proper divisors (25821350572).

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

22112205140 is a wasteful number, since it uses less digits than its factorization.

22112205140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35664887 (or 35664885 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 22112205140 its reverse (4150221122), we get a palindrome (26262426262).

The spelling of 22112205140 in words is "twenty-two billion, one hundred twelve million, two hundred five thousand, one hundred forty".