22002012000 has 288 divisors, whose sum is σ = 82680683904. Its totient is φ = 5521920000.

The previous prime is 22002011957. The next prime is 22002012029. The reversal of 22002012000 is 21020022.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 594025 + ... + 629975.

It is an arithmetic number, because the mean of its divisors is an integer number (287085708).

Almost surely, 2^22002012000 is an apocalyptic number.

22002012000 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 22002012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41340341952).

22002012000 is an abundant number, since it is smaller than the sum of its proper divisors (60678671904).

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

22002012000 is a wasteful number, since it uses less digits than its factorization.

22002012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35999 (or 35978 counting only the distinct ones).

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

Adding to 22002012000 its reverse (21020022), we get a palindrome (22023032022).

The spelling of 22002012000 in words is "twenty-two billion, two million, twelve thousand".