201111011021001 has 8 divisors (see below), whose sum is σ = 268167879036000. Its totient is φ = 134064075176672.

The previous prime is 201111011020963. The next prime is 201111011021023. The reversal of 201111011021001 is 100120110111102.

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

It is a cyclic number.

It is not a de Polignac number, because 201111011021001 - 2⁷ = 201111011020873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201111011020001) 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, 2482995420 + ... + 2483076413.

It is an arithmetic number, because the mean of its divisors is an integer number (33520984879500).

Almost surely, 2^{201111011021001} is an apocalyptic number.

It is an amenable number.

201111011021001 is a deficient number, since it is larger than the sum of its proper divisors (67056868014999).

201111011021001 is a wasteful number, since it uses less digits than its factorization.

201111011021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966085335.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 201111011021001 its reverse (100120110111102), we get a palindrome (301231121132103).

The spelling of 201111011021001 in words is "two hundred one trillion, one hundred eleven billion, eleven million, twenty-one thousand, one".