2011020221211 has 16 divisors (see below), whose sum is σ = 2692691942400. Its totient is φ = 1335014793728.

The previous prime is 2011020221191. The next prime is 2011020221233. The reversal of 2011020221211 is 1121220201102.

It is a cyclic number.

It is not a de Polignac number, because 2011020221211 - 2⁷ = 2011020221083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011020221611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23962555 + ... + 24046331.

It is an arithmetic number, because the mean of its divisors is an integer number (168293246400).

Almost surely, 2^{2011020221211} is an apocalyptic number.

2011020221211 is a deficient number, since it is larger than the sum of its proper divisors (681671721189).

2011020221211 is a wasteful number, since it uses less digits than its factorization.

2011020221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117498.

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

Adding to 2011020221211 its reverse (1121220201102), we get a palindrome (3132240422313).

The spelling of 2011020221211 in words is "two trillion, eleven billion, twenty million, two hundred twenty-one thousand, two hundred eleven".