22011211000 has 32 divisors (see below), whose sum is σ = 51506236080. Its totient is φ = 8804484000.

The previous prime is 22011210983. The next prime is 22011211009. The reversal of 22011211000 is 11211022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011211009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11004606 + ... + 11006605.

Almost surely, 2^22011211000 is an apocalyptic number.

22011211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011211000 is an abundant number, since it is smaller than the sum of its proper divisors (29495025080).

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

22011211000 is a wasteful number, since it uses less digits than its factorization.

22011211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22011232 (or 22011218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22011211000 its reverse (11211022), we get a palindrome (22022422022).

The spelling of 22011211000 in words is "twenty-two billion, eleven million, two hundred eleven thousand".