22011202000 has 80 divisors (see below), whose sum is σ = 53255966400. Its totient is φ = 8799043200.

The previous prime is 22011201991. The next prime is 22011202027. The reversal of 22011202000 is 20211022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5315931 + ... + 5320069.

It is an arithmetic number, because the mean of its divisors is an integer number (665699580).

Almost surely, 2^22011202000 is an apocalyptic number.

22011202000 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 22011202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26627983200).

22011202000 is an abundant number, since it is smaller than the sum of its proper divisors (31244764400).

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

22011202000 is a wasteful number, since it uses less digits than its factorization.

22011202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6821 (or 6805 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22011202000 its reverse (20211022), we get a palindrome (22031413022).

The spelling of 22011202000 in words is "twenty-two billion, eleven million, two hundred two thousand".