22011321000 has 64 divisors (see below), whose sum is σ = 68675330880. Its totient is φ = 5869684800.

The previous prime is 22011320999. The next prime is 22011321019. The reversal of 22011321000 is 12311022.

It is a super-3 number, since 3×22011321000³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3665554 + ... + 3671553.

It is an arithmetic number, because the mean of its divisors is an integer number (1073052045).

Almost surely, 2^22011321000 is an apocalyptic number.

22011321000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011321000 is an abundant number, since it is smaller than the sum of its proper divisors (46664009880).

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

22011321000 is a wasteful number, since it uses less digits than its factorization.

22011321000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337131 (or 7337117 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 22011321000 its reverse (12311022), we get a palindrome (22023632022).

The spelling of 22011321000 in words is "twenty-two billion, eleven million, three hundred twenty-one thousand".