412432220021 has 4 divisors (see below), whose sum is σ = 413371701600. Its totient is φ = 411492738444.

The previous prime is 412432219987. The next prime is 412432220041. The reversal of 412432220021 is 120022234214.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120022234214 = 2 ⋅60011117107.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412432220021 is a prime.

It is a super-2 number, since 2×412432220021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412432220041) 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, 469740131 + ... + 469741008.

It is an arithmetic number, because the mean of its divisors is an integer number (103342925400).

Almost surely, 2^412432220021 is an apocalyptic number.

It is an amenable number.

412432220021 is a deficient number, since it is larger than the sum of its proper divisors (939481579).

412432220021 is an equidigital number, since it uses as much as digits as its factorization.

412432220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939481578.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 412432220021 its reverse (120022234214), we get a palindrome (532454454235).

The spelling of 412432220021 in words is "four hundred twelve billion, four hundred thirty-two million, two hundred twenty thousand, twenty-one".