1221412031043 has 8 divisors (see below), whose sum is σ = 1628555134800. Its totient is φ = 814271807328.

The previous prime is 1221412031033. The next prime is 1221412031053. The reversal of 1221412031043 is 3401302141221.

It is an interprime number because it is at equal distance from previous prime (1221412031033) and next prime (1221412031053).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1221412031043 - 2⁵ = 1221412031011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1221412031033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632493 + ... + 1686081.

It is an arithmetic number, because the mean of its divisors is an integer number (203569391850).

Almost surely, 2^{1221412031043} is an apocalyptic number.

1221412031043 is a deficient number, since it is larger than the sum of its proper divisors (407143103757).

1221412031043 is a wasteful number, since it uses less digits than its factorization.

1221412031043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440021.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1221412031043 its reverse (3401302141221), we get a palindrome (4622714172264).

The spelling of 1221412031043 in words is "one trillion, two hundred twenty-one billion, four hundred twelve million, thirty-one thousand, forty-three".