1224212133140 has 48 divisors (see below), whose sum is σ = 2722170592512. Its totient is φ = 460863115776.

The previous prime is 1224212133119. The next prime is 1224212133149. The reversal of 1224212133140 is 413312124221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224212133149) 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, 13339049 + ... + 13430511.

It is an arithmetic number, because the mean of its divisors is an integer number (56711887344).

Almost surely, 2^{1224212133140} is an apocalyptic number.

1224212133140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224212133140 is an abundant number, since it is smaller than the sum of its proper divisors (1497958459372).

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

1224212133140 is a wasteful number, since it uses less digits than its factorization.

1224212133140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130856 (or 130854 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1224212133140 its reverse (413312124221), we get a palindrome (1637524257361).

The spelling of 1224212133140 in words is "one trillion, two hundred twenty-four billion, two hundred twelve million, one hundred thirty-three thousand, one hundred forty".