1202200121231 has 2 divisors, whose sum is σ = 1202200121232. Its totient is φ = 1202200121230.

The previous prime is 1202200121209. The next prime is 1202200121333. The reversal of 1202200121231 is 1321210022021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202200121231 - 2¹⁰ = 1202200120207 is a prime.

It is a super-2 number, since 2×1202200121231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202200121531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601100060615 + 601100060616.

It is an arithmetic number, because the mean of its divisors is an integer number (601100060616).

Almost surely, 2^{1202200121231} is an apocalyptic number.

1202200121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202200121231 is an equidigital number, since it uses as much as digits as its factorization.

1202200121231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1202200121231 its reverse (1321210022021), we get a palindrome (2523410143252).

The spelling of 1202200121231 in words is "one trillion, two hundred two billion, two hundred million, one hundred twenty-one thousand, two hundred thirty-one".