1221431424041 has 8 divisors (see below), whose sum is σ = 1228794525504. Its totient is φ = 1214068907920.

The previous prime is 1221431424023. The next prime is 1221431424053. The reversal of 1221431424041 is 1404241341221.

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

It is a cyclic number.

It is not a de Polignac number, because 1221431424041 - 2¹⁴ = 1221431407657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1221431423995 and 1221431424013.

It is not an unprimeable number, because it can be changed into a prime (1221431424011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4478591 + ... + 4743483.

It is an arithmetic number, because the mean of its divisors is an integer number (153599315688).

Almost surely, 2^{1221431424041} is an apocalyptic number.

It is an amenable number.

1221431424041 is a deficient number, since it is larger than the sum of its proper divisors (7363101463).

1221431424041 is a wasteful number, since it uses less digits than its factorization.

1221431424041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292671.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1221431424041 its reverse (1404241341221), we get a palindrome (2625672765262).

The spelling of 1221431424041 in words is "one trillion, two hundred twenty-one billion, four hundred thirty-one million, four hundred twenty-four thousand, forty-one".