11212132572 has 36 divisors (see below), whose sum is σ = 28806404536. Its totient is φ = 3676108320.

The previous prime is 11212132537. The next prime is 11212132577. The reversal of 11212132572 is 27523121211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212132577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2550658 + ... + 2555049.

Almost surely, 2^11212132572 is an apocalyptic number.

11212132572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212132572 is an abundant number, since it is smaller than the sum of its proper divisors (17594271964).

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

11212132572 is a wasteful number, since it uses less digits than its factorization.

11212132572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105778 (or 5105773 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

Adding to 11212132572 its reverse (27523121211), we get a palindrome (38735253783).

The spelling of 11212132572 in words is "eleven billion, two hundred twelve million, one hundred thirty-two thousand, five hundred seventy-two".