1211120224143 has 4 divisors (see below), whose sum is σ = 1614826965528. Its totient is φ = 807413482760.

The previous prime is 1211120224141. The next prime is 1211120224169. The reversal of 1211120224143 is 3414220211121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1211120224143 - 2¹ = 1211120224141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211120224141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201853370688 + ... + 201853370693.

It is an arithmetic number, because the mean of its divisors is an integer number (403706741382).

Almost surely, 2^{1211120224143} is an apocalyptic number.

1211120224143 is a deficient number, since it is larger than the sum of its proper divisors (403706741385).

1211120224143 is an equidigital number, since it uses as much as digits as its factorization.

1211120224143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403706741384.

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

Adding to 1211120224143 its reverse (3414220211121), we get a palindrome (4625340435264).

The spelling of 1211120224143 in words is "one trillion, two hundred eleven billion, one hundred twenty million, two hundred twenty-four thousand, one hundred forty-three".