221021121001141 has 2 divisors, whose sum is σ = 221021121001142. Its totient is φ = 221021121001140.

The previous prime is 221021121001081. The next prime is 221021121001207. The reversal of 221021121001141 is 141100121120122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179412764195025 + 41608356806116 = 13394505^2 + 6450454^2 .

It is a cyclic number.

It is not a de Polignac number, because 221021121001141 - 2⁹ = 221021121000629 is a prime.

It is a super-2 number, since 2×221021121001141² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221021121002141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110510560500570 + 110510560500571.

It is an arithmetic number, because the mean of its divisors is an integer number (110510560500571).

Almost surely, 2^{221021121001141} is an apocalyptic number.

It is an amenable number.

221021121001141 is a deficient number, since it is larger than the sum of its proper divisors (1).

221021121001141 is an equidigital number, since it uses as much as digits as its factorization.

221021121001141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221021121001141 its reverse (141100121120122), we get a palindrome (362121242121263).

The spelling of 221021121001141 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred twenty-one million, one thousand, one hundred forty-one".