22219118420 has 24 divisors (see below), whose sum is σ = 46837574784. Its totient is φ = 8853851936.

The previous prime is 22219118401. The next prime is 22219118429. The reversal of 22219118420 is 2481191222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22219118429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2106824 + ... + 2117343.

It is an arithmetic number, because the mean of its divisors is an integer number (1951565616).

Almost surely, 2^22219118420 is an apocalyptic number.

22219118420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22219118420 is an abundant number, since it is smaller than the sum of its proper divisors (24618456364).

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

22219118420 is a wasteful number, since it uses less digits than its factorization.

22219118420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224439 (or 4224437 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 22219118420 in words is "twenty-two billion, two hundred nineteen million, one hundred eighteen thousand, four hundred twenty".