2011011002201 has 4 divisors (see below), whose sum is σ = 2011036556004. Its totient is φ = 2010985448400.

The previous prime is 2011011002197. The next prime is 2011011002257. The reversal of 2011011002201 is 1022001101102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147379210000 + 1863631792201 = 383900^2 + 1365149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011011002201 - 2² = 2011011002197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011011002291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12658490 + ... + 12816371.

It is an arithmetic number, because the mean of its divisors is an integer number (502759139001).

Almost surely, 2^{2011011002201} is an apocalyptic number.

It is an amenable number.

2011011002201 is a deficient number, since it is larger than the sum of its proper divisors (25553803).

2011011002201 is an equidigital number, since it uses as much as digits as its factorization.

2011011002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25553802.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2011011002201 its reverse (1022001101102), we get a palindrome (3033012103303).

The spelling of 2011011002201 in words is "two trillion, eleven billion, eleven million, two thousand, two hundred one".