210111121122001 has 8 divisors (see below), whose sum is σ = 229508654952384. Its totient is φ = 190763007761520.

The previous prime is 210111121121971. The next prime is 210111121122031. The reversal of 210111121122001 is 100221121111012.

It is an interprime number because it is at equal distance from previous prime (210111121121971) and next prime (210111121122031).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210111121122001 is a prime.

It is a super-2 number, since 2×210111121122001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210111121122031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12355108581 + ... + 12355125586.

It is an arithmetic number, because the mean of its divisors is an integer number (28688581869048).

Almost surely, 2^{210111121122001} is an apocalyptic number.

It is an amenable number.

210111121122001 is a deficient number, since it is larger than the sum of its proper divisors (19397533830383).

210111121122001 is a wasteful number, since it uses less digits than its factorization.

210111121122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24710234951.

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

Adding to 210111121122001 its reverse (100221121111012), we get a palindrome (310332242233013).

The spelling of 210111121122001 in words is "two hundred ten trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twenty-two thousand, one".