1220200201331 has 2 divisors, whose sum is σ = 1220200201332. Its totient is φ = 1220200201330.

The previous prime is 1220200201307. The next prime is 1220200201421. The reversal of 1220200201331 is 1331020020221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220200201331 is a prime.

It is a super-2 number, since 2×1220200201331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1220200201631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610100100665 + 610100100666.

It is an arithmetic number, because the mean of its divisors is an integer number (610100100666).

Almost surely, 2^{1220200201331} is an apocalyptic number.

1220200201331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220200201331 is an equidigital number, since it uses as much as digits as its factorization.

1220200201331 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 17.

Adding to 1220200201331 its reverse (1331020020221), we get a palindrome (2551220221552).

The spelling of 1220200201331 in words is "one trillion, two hundred twenty billion, two hundred million, two hundred one thousand, three hundred thirty-one".