11212010440 has 32 divisors (see below), whose sum is σ = 25582340160. Its totient is φ = 4421636800.

The previous prime is 11212010437. The next prime is 11212010449. The reversal of 11212010440 is 4401021211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11212010449) 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, 1971106 + ... + 1976785.

It is an arithmetic number, because the mean of its divisors is an integer number (799448130).

Almost surely, 2^11212010440 is an apocalyptic number.

11212010440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212010440 is an abundant number, since it is smaller than the sum of its proper divisors (14370329720).

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

11212010440 is a wasteful number, since it uses less digits than its factorization.

11212010440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947973 (or 3947969 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11212010440 its reverse (4401021211), we get a palindrome (15613031651).

The spelling of 11212010440 in words is "eleven billion, two hundred twelve million, ten thousand, four hundred forty".