1201300022261 has 2 divisors, whose sum is σ = 1201300022262. Its totient is φ = 1201300022260.

The previous prime is 1201300022231. The next prime is 1201300022309. The reversal of 1201300022261 is 1622200031021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1041408004036 + 159892018225 = 1020494^2 + 399865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201300022261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201300022231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600650011130 + 600650011131.

It is an arithmetic number, because the mean of its divisors is an integer number (600650011131).

Almost surely, 2^{1201300022261} is an apocalyptic number.

It is an amenable number.

1201300022261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201300022261 is an equidigital number, since it uses as much as digits as its factorization.

1201300022261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1201300022261 its reverse (1622200031021), we get a palindrome (2823500053282).

The spelling of 1201300022261 in words is "one trillion, two hundred one billion, three hundred million, twenty-two thousand, two hundred sixty-one".