2011111220001 has 64 divisors (see below), whose sum is σ = 2964999873024. Its totient is φ = 1204879104000.

The previous prime is 2011111219987. The next prime is 2011111220047. The reversal of 2011111220001 is 1000221111102.

It is not a de Polignac number, because 2011111220001 - 2⁶ = 2011111219937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011111220071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 331153101 + ... + 331159173.

It is an arithmetic number, because the mean of its divisors is an integer number (46328123016).

Almost surely, 2^{2011111220001} is an apocalyptic number.

It is an amenable number.

2011111220001 is a deficient number, since it is larger than the sum of its proper divisors (953888653023).

2011111220001 is a wasteful number, since it uses less digits than its factorization.

2011111220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7354.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2011111220001 its reverse (1000221111102), we get a palindrome (3011332331103).

The spelling of 2011111220001 in words is "two trillion, eleven billion, one hundred eleven million, two hundred twenty thousand, one".