111210012112001 has 16 divisors (see below), whose sum is σ = 128466625148928. Its totient is φ = 95145440006400.

The previous prime is 111210012111997. The next prime is 111210012112007. The reversal of 111210012112001 is 100211210012111.

It is a cyclic number.

It is not a de Polignac number, because 111210012112001 - 2² = 111210012111997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111210012112007) 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, 21097730 + ... + 25836683.

It is an arithmetic number, because the mean of its divisors is an integer number (8029164071808).

Almost surely, 2^{111210012112001} is an apocalyptic number.

111210012112001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111210012112001 is a deficient number, since it is larger than the sum of its proper divisors (17256613036927).

111210012112001 is a wasteful number, since it uses less digits than its factorization.

111210012112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46947112.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111210012112001 its reverse (100211210012111), we get a palindrome (211421222124112).

The spelling of 111210012112001 in words is "one hundred eleven trillion, two hundred ten billion, twelve million, one hundred twelve thousand, one".