1212331131230 has 32 divisors (see below), whose sum is σ = 2190697765344. Its totient is φ = 483046333056.

The previous prime is 1212331131229. The next prime is 1212331131233. The reversal of 1212331131230 is 321311332121.

It is a super-2 number, since 2×1212331131230² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212331131196 and 1212331131205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212331131233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2888204 + ... + 3281216.

It is an arithmetic number, because the mean of its divisors is an integer number (68459305167).

Almost surely, 2^{1212331131230} is an apocalyptic number.

1212331131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212331131230 is a deficient number, since it is larger than the sum of its proper divisors (978366634114).

1212331131230 is a wasteful number, since it uses less digits than its factorization.

1212331131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394220.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1212331131230 its reverse (321311332121), we get a palindrome (1533642463351).

The spelling of 1212331131230 in words is "one trillion, two hundred twelve billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred thirty".