11212352145 has 24 divisors (see below), whose sum is σ = 19700978856. Its totient is φ = 5898002688.

The previous prime is 11212352131. The next prime is 11212352147. The reversal of 11212352145 is 54125321211.

It is a happy number.

11212352145 is a `hidden beast` number, since 1 + 12 + 123 + 521 + 4 + 5 = 666.

11212352145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 634435344 + 10577916801 = 25188^2 + 102849^2 .

It is not a de Polignac number, because 11212352145 - 2¹⁶ = 11212286609 is a prime.

It is a super-2 number, since 2×11212352145² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212352147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1703314 + ... + 1709883.

It is an arithmetic number, because the mean of its divisors is an integer number (820874119).

Almost surely, 2^11212352145 is an apocalyptic number.

11212352145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11212352145 is a deficient number, since it is larger than the sum of its proper divisors (8488626711).

11212352145 is a wasteful number, since it uses less digits than its factorization.

11212352145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413281 (or 3413278 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 11212352145 its reverse (54125321211), we get a palindrome (65337673356).

The spelling of 11212352145 in words is "eleven billion, two hundred twelve million, three hundred fifty-two thousand, one hundred forty-five".