22051002000 has 160 divisors (see below), whose sum is σ = 72746593920. Its totient is φ = 5743449600.

The previous prime is 22051001993. The next prime is 22051002019. The reversal of 22051002000 is 20015022.

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

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, 215266 + ... + 300734.

It is an arithmetic number, because the mean of its divisors is an integer number (454666212).

Almost surely, 2^22051002000 is an apocalyptic number.

22051002000 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 22051002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36373296960).

22051002000 is an abundant number, since it is smaller than the sum of its proper divisors (50695591920).

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

22051002000 is a wasteful number, since it uses less digits than its factorization.

22051002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85538 (or 85522 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

Adding to 22051002000 its reverse (20015022), we get a palindrome (22071017022).

The spelling of 22051002000 in words is "twenty-two billion, fifty-one million, two thousand".