111121201121012 has 12 divisors (see below), whose sum is σ = 194467538518176. Its totient is φ = 55559047258680.

The previous prime is 111121201120991. The next prime is 111121201121053. The reversal of 111121201121012 is 210121102121111.

It is a super-3 number, since 3×111121201121012³ (a number of 43 digits) contains 333 as substring.

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, 388164488 + ... + 388450655.

It is an arithmetic number, because the mean of its divisors is an integer number (16205628209848).

Almost surely, 2^{111121201121012} is an apocalyptic number.

It is an amenable number.

111121201121012 is a deficient number, since it is larger than the sum of its proper divisors (83346337397164).

111121201121012 is a wasteful number, since it uses less digits than its factorization.

111121201121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776650918 (or 776650916 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111121201121012 its reverse (210121102121111), we get a palindrome (321242303242123).

The spelling of 111121201121012 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred one million, one hundred twenty-one thousand, twelve".