1211223112230 has 32 divisors (see below), whose sum is σ = 2985501295584. Its totient is φ = 314263293696.

The previous prime is 1211223112213. The next prime is 1211223112243. The reversal of 1211223112230 is 322113221121.

It is a super-2 number, since 2×1211223112230² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211223112197 and 1211223112206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545594887 + ... + 545597106.

It is an arithmetic number, because the mean of its divisors is an integer number (93296915487).

Almost surely, 2^{1211223112230} is an apocalyptic number.

1211223112230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211223112230 is an abundant number, since it is smaller than the sum of its proper divisors (1774278183354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211223112230 is a wasteful number, since it uses less digits than its factorization.

1211223112230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091192040.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1211223112230 its reverse (322113221121), we get a palindrome (1533336333351).

The spelling of 1211223112230 in words is "one trillion, two hundred eleven billion, two hundred twenty-three million, one hundred twelve thousand, two hundred thirty".