2221001021211 has 16 divisors (see below), whose sum is σ = 3385119833088. Its totient is φ = 1268866944000.

The previous prime is 2221001021201. The next prime is 2221001021251. The reversal of 2221001021211 is 1121201001222.

2221001021211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221001021211 - 2⁹ = 2221001020699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221001021201) 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, 11421990 + ... + 11614811.

It is an arithmetic number, because the mean of its divisors is an integer number (211569989568).

Almost surely, 2^{2221001021211} is an apocalyptic number.

2221001021211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2221001021211 is a deficient number, since it is larger than the sum of its proper divisors (1164118811877).

2221001021211 is a wasteful number, since it uses less digits than its factorization.

2221001021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23041402.

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

Adding to 2221001021211 its reverse (1121201001222), we get a palindrome (3342202022433).

The spelling of 2221001021211 in words is "two trillion, two hundred twenty-one billion, one million, twenty-one thousand, two hundred eleven".