22212211000 has 128 divisors (see below), whose sum is σ = 60119055360. Its totient is φ = 7523664000.

The previous prime is 22212210991. The next prime is 22212211009. The reversal of 22212211000 is 11221222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22212210991) and next prime (22212211009).

It is a super-4 number, since 4×22212211000⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212211009) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 561885 + ... + 600115.

It is an arithmetic number, because the mean of its divisors is an integer number (469680120).

Almost surely, 2^22212211000 is an apocalyptic number.

22212211000 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 22212211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30059527680).

22212211000 is an abundant number, since it is smaller than the sum of its proper divisors (37906844360).

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

22212211000 is a wasteful number, since it uses less digits than its factorization.

22212211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38342 (or 38328 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22212211000 its reverse (11221222), we get a palindrome (22223432222).

The spelling of 22212211000 in words is "twenty-two billion, two hundred twelve million, two hundred eleven thousand".