22048185812 has 12 divisors (see below), whose sum is σ = 38604960576. Its totient is φ = 11018197080.

The previous prime is 22048185811. The next prime is 22048185823. The reversal of 22048185812 is 21858184022.

It is a super-2 number, since 2×22048185812² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22048185812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22048185811) 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, 1465538 + ... + 1480505.

It is an arithmetic number, because the mean of its divisors is an integer number (3217080048).

Almost surely, 2^22048185812 is an apocalyptic number.

It is an amenable number.

22048185812 is a deficient number, since it is larger than the sum of its proper divisors (16556774764).

22048185812 is a wasteful number, since it uses less digits than its factorization.

22048185812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947918 (or 2947916 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The spelling of 22048185812 in words is "twenty-two billion, forty-eight million, one hundred eighty-five thousand, eight hundred twelve".