11212130145 has 32 divisors (see below), whose sum is σ = 18008347392. Its totient is φ = 5956872192.

The previous prime is 11212130131. The next prime is 11212130161. The reversal of 11212130145 is 54103121211.

It is not a de Polignac number, because 11212130145 - 2⁴ = 11212130129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7747812 + ... + 7749258.

It is an arithmetic number, because the mean of its divisors is an integer number (562760856).

Almost surely, 2^11212130145 is an apocalyptic number.

11212130145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11212130145 is a deficient number, since it is larger than the sum of its proper divisors (6796217247).

11212130145 is a wasteful number, since it uses less digits than its factorization.

11212130145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11212130145 its reverse (54103121211), we get a palindrome (65315251356).

The spelling of 11212130145 in words is "eleven billion, two hundred twelve million, one hundred thirty thousand, one hundred forty-five".