22402179072 has 840 divisors, whose sum is σ = 85423124556. Its totient is φ = 5796790272.

The previous prime is 22402179061. The next prime is 22402179089. The reversal of 22402179072 is 27097120422.

It can be written as a sum of positive squares in 2 ways, for example, as 22255865856 + 146313216 = 149184^2 + 12096^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 422682598 + ... + 422682650.

Almost surely, 2^22402179072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22402179072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42711562278).

22402179072 is an abundant number, since it is smaller than the sum of its proper divisors (63020945484).

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

22402179072 is an equidigital number, since it uses as much as digits as its factorization.

22402179072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

Adding to 22402179072 its reverse (27097120422), we get a palindrome (49499299494).

The spelling of 22402179072 in words is "twenty-two billion, four hundred two million, one hundred seventy-nine thousand, seventy-two".