1012431024221 has 4 divisors (see below), whose sum is σ = 1012436911200. Its totient is φ = 1012425137244.

The previous prime is 1012431024179. The next prime is 1012431024233. The reversal of 1012431024221 is 1224201342101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012431024221 - 2²² = 1012426829917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012431024251) 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, 2677511 + ... + 3032148.

It is an arithmetic number, because the mean of its divisors is an integer number (253109227800).

Almost surely, 2^{1012431024221} is an apocalyptic number.

It is an amenable number.

1012431024221 is a deficient number, since it is larger than the sum of its proper divisors (5886979).

1012431024221 is an equidigital number, since it uses as much as digits as its factorization.

1012431024221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5886978.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1012431024221 its reverse (1224201342101), we get a palindrome (2236632366322).

The spelling of 1012431024221 in words is "one trillion, twelve billion, four hundred thirty-one million, twenty-four thousand, two hundred twenty-one".