1121222100043 has 16 divisors (see below), whose sum is σ = 1188252936864. Its totient is φ = 1054311344640.

The previous prime is 1121222100017. The next prime is 1121222100067. The reversal of 1121222100043 is 3400012221211.

It is a cyclic number.

It is not a de Polignac number, because 1121222100043 - 2²⁵ = 1121188545611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121222100143) 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, 144838153 + ... + 144845893.

It is an arithmetic number, because the mean of its divisors is an integer number (74265808554).

Almost surely, 2^{1121222100043} is an apocalyptic number.

1121222100043 is a deficient number, since it is larger than the sum of its proper divisors (67030836821).

1121222100043 is a wasteful number, since it uses less digits than its factorization.

1121222100043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14382.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1121222100043 its reverse (3400012221211), we get a palindrome (4521234321254).

The spelling of 1121222100043 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred thousand, forty-three".