111212130021142 has 8 divisors (see below), whose sum is σ = 166818265272432. Its totient is φ = 55606041597000.

The previous prime is 111212130021059. The next prime is 111212130021173. The reversal of 111212130021142 is 241120031212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5001234 + ... + 15730117.

It is an arithmetic number, because the mean of its divisors is an integer number (20852283159054).

Almost surely, 2^{111212130021142} is an apocalyptic number.

111212130021142 is a deficient number, since it is larger than the sum of its proper divisors (55606135251290).

111212130021142 is a wasteful number, since it uses less digits than its factorization.

111212130021142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23413574.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 111212130021142 its reverse (241120031212111), we get a palindrome (352332161233253).

The spelling of 111212130021142 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred thirty million, twenty-one thousand, one hundred forty-two".