221002220211041 has 2 divisors, whose sum is σ = 221002220211042. Its totient is φ = 221002220211040.

The previous prime is 221002220211011. The next prime is 221002220211119. The reversal of 221002220211041 is 140112022200122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175062562916641 + 45939657294400 = 13231121^2 + 6777880^2 .

It is a cyclic number.

It is not a de Polignac number, because 221002220211041 - 2²⁶ = 221002153102177 is a prime.

It is not a weakly prime, because it can be changed into another prime (221002220211011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501110105520 + 110501110105521.

It is an arithmetic number, because the mean of its divisors is an integer number (110501110105521).

Almost surely, 2^{221002220211041} is an apocalyptic number.

It is an amenable number.

221002220211041 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002220211041 is an equidigital number, since it uses as much as digits as its factorization.

221002220211041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221002220211041 its reverse (140112022200122), we get a palindrome (361114242411163).

The spelling of 221002220211041 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, two hundred eleven thousand, forty-one".