111312220211001 has 24 divisors (see below), whose sum is σ = 167024540592000. Its totient is φ = 71349457516512.

The previous prime is 111312220210951. The next prime is 111312220211053. The reversal of 111312220211001 is 100112022213111.

It is a happy number.

111312220211001 is a `hidden beast` number, since 1 + 11 + 312 + 220 + 21 + 100 + 1 = 666.

It is not a de Polignac number, because 111312220211001 - 2¹⁹ = 111312219686713 is a prime.

It is a super-2 number, since 2×111312220211001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111312220211201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 892162731 + ... + 892287488.

It is an arithmetic number, because the mean of its divisors is an integer number (6959355858000).

Almost surely, 2^{111312220211001} is an apocalyptic number.

It is an amenable number.

111312220211001 is a deficient number, since it is larger than the sum of its proper divisors (55712320380999).

111312220211001 is a wasteful number, since it uses less digits than its factorization.

111312220211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784450493 (or 1784450490 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111312220211001 its reverse (100112022213111), we get a palindrome (211424242424112).

The spelling of 111312220211001 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred twenty million, two hundred eleven thousand, one".