2011201022121 has 8 divisors (see below), whose sum is σ = 2681621219424. Its totient is φ = 1340790753120.

The previous prime is 2011201022111. The next prime is 2011201022183. The reversal of 2011201022121 is 1212201021102.

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

It is not a de Polignac number, because 2011201022121 - 2⁶ = 2011201022057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011201022121.

It is not an unprimeable number, because it can be changed into a prime (2011201022111) 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, 1995795 + ... + 2829416.

It is an arithmetic number, because the mean of its divisors is an integer number (335202652428).

Almost surely, 2^{2011201022121} is an apocalyptic number.

It is an amenable number.

2011201022121 is a deficient number, since it is larger than the sum of its proper divisors (670420197303).

2011201022121 is a wasteful number, since it uses less digits than its factorization.

2011201022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964151.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2011201022121 its reverse (1212201021102), we get a palindrome (3223402043223).

The spelling of 2011201022121 in words is "two trillion, eleven billion, two hundred one million, twenty-two thousand, one hundred twenty-one".