1200221021141 has 2 divisors, whose sum is σ = 1200221021142. Its totient is φ = 1200221021140.

The previous prime is 1200221021099. The next prime is 1200221021159. The reversal of 1200221021141 is 1411201220021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199125742116 + 1095279025 = 1095046^2 + 33095^2 .

It is an emirp because it is prime and its reverse (1411201220021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200221021141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200221021941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600110510570 + 600110510571.

It is an arithmetic number, because the mean of its divisors is an integer number (600110510571).

Almost surely, 2^{1200221021141} is an apocalyptic number.

It is an amenable number.

1200221021141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200221021141 is an equidigital number, since it uses as much as digits as its factorization.

1200221021141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1200221021141 its reverse (1411201220021), we get a palindrome (2611422241162).

The spelling of 1200221021141 in words is "one trillion, two hundred billion, two hundred twenty-one million, twenty-one thousand, one hundred forty-one".