2011220002001 has 4 divisors (see below), whose sum is σ = 2298537145152. Its totient is φ = 1723902858852.

The previous prime is 2011220001979. The next prime is 2011220002009. The reversal of 2011220002001 is 1002000221102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011220002001 - 2¹⁴ = 2011219985617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011220002009) 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, 143658571565 + ... + 143658571578.

It is an arithmetic number, because the mean of its divisors is an integer number (574634286288).

Almost surely, 2^{2011220002001} is an apocalyptic number.

It is an amenable number.

2011220002001 is a deficient number, since it is larger than the sum of its proper divisors (287317143151).

2011220002001 is an equidigital number, since it uses as much as digits as its factorization.

2011220002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287317143150.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2011220002001 its reverse (1002000221102), we get a palindrome (3013220223103).

The spelling of 2011220002001 in words is "two trillion, eleven billion, two hundred twenty million, two thousand, one".