11111210211213 has 64 divisors (see below), whose sum is σ = 19476936000000. Its totient is φ = 6125410916352.

The previous prime is 11111210211109. The next prime is 11111210211281. The reversal of 11111210211213 is 31211201211111.

It is not a de Polignac number, because 11111210211213 - 2⁸ = 11111210210957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111210212213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6034231 + ... + 7657307.

It is an arithmetic number, because the mean of its divisors is an integer number (304327125000).

Almost surely, 2^{11111210211213} is an apocalyptic number.

It is an amenable number.

11111210211213 is a deficient number, since it is larger than the sum of its proper divisors (8365725788787).

11111210211213 is a wasteful number, since it uses less digits than its factorization.

11111210211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624371 (or 1624365 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11111210211213 its reverse (31211201211111), we get a palindrome (42322411422324).

The spelling of 11111210211213 in words is "eleven trillion, one hundred eleven billion, two hundred ten million, two hundred eleven thousand, two hundred thirteen".