1200100012231 has 2 divisors, whose sum is σ = 1200100012232. Its totient is φ = 1200100012230.

The previous prime is 1200100012219. The next prime is 1200100012259. The reversal of 1200100012231 is 1322100010021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200100012231 - 2¹⁷ = 1200099881159 is a prime.

It is a super-2 number, since 2×1200100012231² (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 (1200100012261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600050006115 + 600050006116.

It is an arithmetic number, because the mean of its divisors is an integer number (600050006116).

Almost surely, 2^{1200100012231} is an apocalyptic number.

1200100012231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200100012231 is an equidigital number, since it uses as much as digits as its factorization.

1200100012231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1200100012231 its reverse (1322100010021), we get a palindrome (2522200022252).

The spelling of 1200100012231 in words is "one trillion, two hundred billion, one hundred million, twelve thousand, two hundred thirty-one".