22123763420 has 72 divisors (see below), whose sum is σ = 51106492752. Its totient is φ = 8038863360.

The previous prime is 22123763407. The next prime is 22123763443. The reversal of 22123763420 is 2436732122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4225124 + ... + 4230356.

Almost surely, 2^22123763420 is an apocalyptic number.

22123763420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22123763420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25553246376).

22123763420 is an abundant number, since it is smaller than the sum of its proper divisors (28982729332).

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

22123763420 is a wasteful number, since it uses less digits than its factorization.

22123763420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011 (or 6998 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The spelling of 22123763420 in words is "twenty-two billion, one hundred twenty-three million, seven hundred sixty-three thousand, four hundred twenty".