11021221112071 has 2 divisors, whose sum is σ = 11021221112072. Its totient is φ = 11021221112070.

The previous prime is 11021221111997. The next prime is 11021221112117. The reversal of 11021221112071 is 17021112212011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11021221112071 - 2²³ = 11021212723463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021221112171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510610556035 + 5510610556036.

It is an arithmetic number, because the mean of its divisors is an integer number (5510610556036).

Almost surely, 2^{11021221112071} is an apocalyptic number.

11021221112071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021221112071 is an equidigital number, since it uses as much as digits as its factorization.

11021221112071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 11021221112071 its reverse (17021112212011), we get a palindrome (28042333324082).

The spelling of 11021221112071 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, seventy-one".