11121233212158 has 32 divisors (see below), whose sum is σ = 22266773856000. Its totient is φ = 3703028387520.

The previous prime is 11121233212157. The next prime is 11121233212171. The reversal of 11121233212158 is 85121233212111.

It is a happy number.

It is a super-2 number, since 2×11121233212158² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121233212157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23536141 + ... + 24004007.

It is an arithmetic number, because the mean of its divisors is an integer number (695836683000).

Almost surely, 2^{11121233212158} is an apocalyptic number.

11121233212158 is an abundant number, since it is smaller than the sum of its proper divisors (11145540643842).

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

11121233212158 is a wasteful number, since it uses less digits than its factorization.

11121233212158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472192.

The product of its digits is 5760, while the sum is 33.

Adding to 11121233212158 its reverse (85121233212111), we get a palindrome (96242466424269).

The spelling of 11121233212158 in words is "eleven trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred twelve thousand, one hundred fifty-eight".