201231222000203 has 2 divisors, whose sum is σ = 201231222000204. Its totient is φ = 201231222000202.

The previous prime is 201231222000199. The next prime is 201231222000223. The reversal of 201231222000203 is 302000222132102.

It is a happy number.

It is an a-pointer prime, because the next prime (201231222000223) can be obtained adding 201231222000203 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201231222000203 - 2² = 201231222000199 is a prime.

It is a super-2 number, since 2×201231222000203² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201231222000223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615611000101 + 100615611000102.

It is an arithmetic number, because the mean of its divisors is an integer number (100615611000102).

Almost surely, 2^{201231222000203} is an apocalyptic number.

201231222000203 is a deficient number, since it is larger than the sum of its proper divisors (1).

201231222000203 is an equidigital number, since it uses as much as digits as its factorization.

201231222000203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201231222000203 its reverse (302000222132102), we get a palindrome (503231444132305).

The spelling of 201231222000203 in words is "two hundred one trillion, two hundred thirty-one billion, two hundred twenty-two million, two hundred three", and thus it is an aban number.