11211447000 has 256 divisors, whose sum is σ = 38049822720. Its totient is φ = 2731968000.

The previous prime is 11211446999. The next prime is 11211447001. The reversal of 11211447000 is 74411211.

It is an interprime number because it is at equal distance from previous prime (11211446999) and next prime (11211447001).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211447001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4015605 + ... + 4018395.

It is an arithmetic number, because the mean of its divisors is an integer number (148632120).

Almost surely, 2^11211447000 is an apocalyptic number.

11211447000 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 11211447000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19024911360).

11211447000 is an abundant number, since it is smaller than the sum of its proper divisors (26838375720).

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

11211447000 is a wasteful number, since it uses less digits than its factorization.

11211447000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931 (or 2917 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

Adding to 11211447000 its reverse (74411211), we get a palindrome (11285858211).

The spelling of 11211447000 in words is "eleven billion, two hundred eleven million, four hundred forty-seven thousand".