11212331652 has 144 divisors (see below), whose sum is σ = 29213184000. Its totient is φ = 3625171200.

The previous prime is 11212331651. The next prime is 11212331677. The reversal of 11212331652 is 25613321211.

11212331652 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 2 + 3 + 3 + 1 + 652 = 666.

It is not an unprimeable number, because it can be changed into a prime (11212331651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74253777 + ... + 74253927.

Almost surely, 2^11212331652 is an apocalyptic number.

11212331652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212331652 is an abundant number, since it is smaller than the sum of its proper divisors (18000852348).

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

11212331652 is a wasteful number, since it uses less digits than its factorization.

11212331652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 541 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

Adding to 11212331652 its reverse (25613321211), we get a palindrome (36825652863).

The spelling of 11212331652 in words is "eleven billion, two hundred twelve million, three hundred thirty-one thousand, six hundred fifty-two".