1224011220432 has 640 divisors, whose sum is σ = 4432137658368. Its totient is φ = 280831795200.

The previous prime is 1224011220431. The next prime is 1224011220449. The reversal of 1224011220432 is 2340221104221.

It is a super-3 number, since 3×1224011220432³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224011220431) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 108438693 + ... + 108449979.

Almost surely, 2^{1224011220432} is an apocalyptic number.

1224011220432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224011220432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2216068829184).

1224011220432 is an abundant number, since it is smaller than the sum of its proper divisors (3208126437936).

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

1224011220432 is a wasteful number, since it uses less digits than its factorization.

1224011220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11427 (or 11421 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1224011220432 its reverse (2340221104221), we get a palindrome (3564232324653).

The spelling of 1224011220432 in words is "one trillion, two hundred twenty-four billion, eleven million, two hundred twenty thousand, four hundred thirty-two".