1212431122212 has 48 divisors (see below), whose sum is σ = 2848487507712. Its totient is φ = 401369771520.

The previous prime is 1212431122139. The next prime is 1212431122219. The reversal of 1212431122212 is 2122211342121.

It is a super-2 number, since 2×1212431122212² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1212431122219) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 490198 + ... + 1632530.

It is an arithmetic number, because the mean of its divisors is an integer number (59343489744).

Almost surely, 2^{1212431122212} is an apocalyptic number.

1212431122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212431122212 is an abundant number, since it is smaller than the sum of its proper divisors (1636056385500).

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

1212431122212 is a wasteful number, since it uses less digits than its factorization.

1212431122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142948 (or 1142946 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

Adding to 1212431122212 its reverse (2122211342121), we get a palindrome (3334642464333).

The spelling of 1212431122212 in words is "one trillion, two hundred twelve billion, four hundred thirty-one million, one hundred twenty-two thousand, two hundred twelve".