111212202112001 has 16 divisors (see below), whose sum is σ = 112833461334528. Its totient is φ = 109592480524800.

The previous prime is 111212202111911. The next prime is 111212202112003. The reversal of 111212202112001 is 100211202212111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111212202112001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111212202112003) 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, 1335471701 + ... + 1335554973.

It is an arithmetic number, because the mean of its divisors is an integer number (7052091333408).

Almost surely, 2^{111212202112001} is an apocalyptic number.

It is an amenable number.

111212202112001 is a deficient number, since it is larger than the sum of its proper divisors (1621259222527).

111212202112001 is an equidigital number, since it uses as much as digits as its factorization.

111212202112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92272.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111212202112001 its reverse (100211202212111), we get a palindrome (211423404324112).

The spelling of 111212202112001 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred two million, one hundred twelve thousand, one".