2221101111011 has 2 divisors, whose sum is σ = 2221101111012. Its totient is φ = 2221101111010.

The previous prime is 2221101111001. The next prime is 2221101111113. The reversal of 2221101111011 is 1101111011222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221101111011 - 2⁶ = 2221101110947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2221101111001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110550555505 + 1110550555506.

It is an arithmetic number, because the mean of its divisors is an integer number (1110550555506).

Almost surely, 2^{2221101111011} is an apocalyptic number.

2221101111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221101111011 is an equidigital number, since it uses as much as digits as its factorization.

2221101111011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2221101111011 its reverse (1101111011222), we get a palindrome (3322212122233).

It can be divided in two parts, 222 and 1101111011, that multiplied together give a palindrome (244446644442).

The spelling of 2221101111011 in words is "two trillion, two hundred twenty-one billion, one hundred one million, one hundred eleven thousand, eleven".