1211244230224 has 80 divisors (see below), whose sum is σ = 2695432481280. Its totient is φ = 516516912000.

The previous prime is 1211244230221. The next prime is 1211244230227. The reversal of 1211244230224 is 4220324421121.

It is an interprime number because it is at equal distance from previous prime (1211244230221) and next prime (1211244230227).

It is a super-2 number, since 2×1211244230224² (a number of 25 digits) contains 22 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 = 1211244230192 and 1211244230201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211244230221) 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, 28624987 + ... + 28667269.

It is an arithmetic number, because the mean of its divisors is an integer number (33692906016).

Almost surely, 2^{1211244230224} is an apocalyptic number.

1211244230224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1211244230224 is an abundant number, since it is smaller than the sum of its proper divisors (1484188251056).

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

1211244230224 is a wasteful number, since it uses less digits than its factorization.

1211244230224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43568 (or 43562 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1211244230224 its reverse (4220324421121), we get a palindrome (5431568651345).

The spelling of 1211244230224 in words is "one trillion, two hundred eleven billion, two hundred forty-four million, two hundred thirty thousand, two hundred twenty-four".