11212211000 has 64 divisors (see below), whose sum is σ = 26352686880. Its totient is φ = 4465036800.

The previous prime is 11212210981. The next prime is 11212211009. The reversal of 11212211000 is 11221211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212211009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202304 + ... + 251696.

Almost surely, 2^11212211000 is an apocalyptic number.

11212211000 is a gapful number since it is divisible by the number (10) 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 11212211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13176343440).

11212211000 is an abundant number, since it is smaller than the sum of its proper divisors (15140475880).

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

11212211000 is a wasteful number, since it uses less digits than its factorization.

11212211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49641 (or 49627 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11212211000 its reverse (11221211), we get a palindrome (11223432211).

The spelling of 11212211000 in words is "eleven billion, two hundred twelve million, two hundred eleven thousand".