2011220202001 has 2 divisors, whose sum is σ = 2011220202002. Its totient is φ = 2011220202000.

The previous prime is 2011220201999. The next prime is 2011220202031. The reversal of 2011220202001 is 1002020221102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1278482490000 + 732737712001 = 1130700^2 + 856001^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011220202001 - 2¹ = 2011220201999 is a prime.

Together with 2011220201999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2011220202031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005610101000 + 1005610101001.

It is an arithmetic number, because the mean of its divisors is an integer number (1005610101001).

Almost surely, 2^{2011220202001} is an apocalyptic number.

It is an amenable number.

2011220202001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011220202001 is an equidigital number, since it uses as much as digits as its factorization.

2011220202001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2011220202001 its reverse (1002020221102), we get a palindrome (3013240423103).

The spelling of 2011220202001 in words is "two trillion, eleven billion, two hundred twenty million, two hundred two thousand, one".