22022001000 has 96 divisors (see below), whose sum is σ = 74434393800. Its totient is φ = 5872531200.

The previous prime is 22022000989. The next prime is 22022001007. The reversal of 22022001000 is 10022022.

It can be written as a sum of positive squares in 4 ways, for example, as 2710451844 + 19311549156 = 52062^2 + 138966^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22022001007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1214445 + ... + 1232444.

Almost surely, 2^22022001000 is an apocalyptic number.

22022001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022001000 is an abundant number, since it is smaller than the sum of its proper divisors (52412392800).

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

22022001000 is a wasteful number, since it uses less digits than its factorization.

22022001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446916 (or 2446899 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 22022001000 its reverse (10022022), we get a palindrome (22032023022).

The spelling of 22022001000 in words is "twenty-two billion, twenty-two million, one thousand".