22223420520 has 128 divisors (see below), whose sum is σ = 76578048000. Its totient is φ = 5054075136.

The previous prime is 22223420507. The next prime is 22223420539. The reversal of 22223420520 is 2502432222.

It is a super-3 number, since 3×22223420520³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100687 + ... + 233633.

It is an arithmetic number, because the mean of its divisors is an integer number (598266000).

Almost surely, 2^22223420520 is an apocalyptic number.

22223420520 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 22223420520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38289024000).

22223420520 is an abundant number, since it is smaller than the sum of its proper divisors (54354627480).

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

22223420520 is a wasteful number, since it uses less digits than its factorization.

22223420520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133167 (or 133163 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 22223420520 its reverse (2502432222), we get a palindrome (24725852742).

The spelling of 22223420520 in words is "twenty-two billion, two hundred twenty-three million, four hundred twenty thousand, five hundred twenty".