221021021119 has 2 divisors, whose sum is σ = 221021021120. Its totient is φ = 221021021118.

The previous prime is 221021021113. The next prime is 221021021131. The reversal of 221021021119 is 911120120122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221021021119 - 2¹⁷ = 221020890047 is a prime.

It is a super-2 number, since 2×221021021119² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221021021119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221021021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110510510559 + 110510510560.

It is an arithmetic number, because the mean of its divisors is an integer number (110510510560).

Almost surely, 2^221021021119 is an apocalyptic number.

221021021119 is a deficient number, since it is larger than the sum of its proper divisors (1).

221021021119 is an equidigital number, since it uses as much as digits as its factorization.

221021021119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 221021021119 in words is "two hundred twenty-one billion, twenty-one million, twenty-one thousand, one hundred nineteen".