22150446420 has 48 divisors (see below), whose sum is σ = 62197007040. Its totient is φ = 5890046976.

The previous prime is 22150446419. The next prime is 22150446443. The reversal of 22150446420 is 2464405122.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 501730 + ... + 544089.

It is an arithmetic number, because the mean of its divisors is an integer number (1295770980).

Almost surely, 2^22150446420 is an apocalyptic number.

22150446420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22150446420 is an abundant number, since it is smaller than the sum of its proper divisors (40046560620).

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

22150446420 is a wasteful number, since it uses less digits than its factorization.

22150446420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046184 (or 1046182 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 22150446420 in words is "twenty-two billion, one hundred fifty million, four hundred forty-six thousand, four hundred twenty".