1210220203231 has 4 divisors (see below), whose sum is σ = 1303314065032. Its totient is φ = 1117126341432.

The previous prime is 1210220203219. The next prime is 1210220203259. The reversal of 1210220203231 is 1323020220121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1210220203231 - 2²¹ = 1210218106079 is a prime.

It is a super-2 number, since 2×1210220203231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210220203199 and 1210220203208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210220203931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46546930881 + ... + 46546930906.

It is an arithmetic number, because the mean of its divisors is an integer number (325828516258).

Almost surely, 2^{1210220203231} is an apocalyptic number.

1210220203231 is a deficient number, since it is larger than the sum of its proper divisors (93093861801).

1210220203231 is an equidigital number, since it uses as much as digits as its factorization.

1210220203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93093861800.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1210220203231 its reverse (1323020220121), we get a palindrome (2533240423352).

The spelling of 1210220203231 in words is "one trillion, two hundred ten billion, two hundred twenty million, two hundred three thousand, two hundred thirty-one".