1211431214224 has 40 divisors (see below), whose sum is σ = 2926314364608. Its totient is φ = 471986186880.

The previous prime is 1211431214221. The next prime is 1211431214249. The reversal of 1211431214224 is 4224121341121.

It is a super-3 number, since 3×1211431214224³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1211431214192 and 1211431214201.

It is not an unprimeable number, because it can be changed into a prime (1211431214221) 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 7 ways as a sum of consecutive naturals, for example, 491651047 + ... + 491653510.

Almost surely, 2^{1211431214224} is an apocalyptic number.

1211431214224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1211431214224 is an abundant number, since it is smaller than the sum of its proper divisors (1714883150384).

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

1211431214224 is a wasteful number, since it uses less digits than its factorization.

1211431214224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983304583 (or 983304577 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

Adding to 1211431214224 its reverse (4224121341121), we get a palindrome (5435552555345).

The spelling of 1211431214224 in words is "one trillion, two hundred eleven billion, four hundred thirty-one million, two hundred fourteen thousand, two hundred twenty-four".