1212012322230 has 64 divisors (see below), whose sum is σ = 2988759121920. Its totient is φ = 314329901184.

The previous prime is 1212012322207. The next prime is 1212012322249. The reversal of 1212012322230 is 322232102121.

It is a junction number, because it is equal to n+sod(n) for n = 1212012322197 and 1212012322206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2299851 + ... + 2777289.

It is an arithmetic number, because the mean of its divisors is an integer number (46699361280).

Almost surely, 2^{1212012322230} is an apocalyptic number.

1212012322230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212012322230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494379560960).

1212012322230 is an abundant number, since it is smaller than the sum of its proper divisors (1776746799690).

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

1212012322230 is a wasteful number, since it uses less digits than its factorization.

1212012322230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479773.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1212012322230 its reverse (322232102121), we get a palindrome (1534244424351).

The spelling of 1212012322230 in words is "one trillion, two hundred twelve billion, twelve million, three hundred twenty-two thousand, two hundred thirty".