340221133021 has 24 divisors (see below), whose sum is σ = 436107425600. Its totient is φ = 265107344040.

The previous prime is 340221133019. The next prime is 340221133051. The reversal of 340221133021 is 120331122043.

It is not a de Polignac number, because 340221133021 - 2¹ = 340221133019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340221132983 and 340221133001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340221133051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4057251 + ... + 4140256.

Almost surely, 2^340221133021 is an apocalyptic number.

It is an amenable number.

340221133021 is a deficient number, since it is larger than the sum of its proper divisors (95886292579).

340221133021 is an equidigital number, since it uses as much as digits as its factorization.

340221133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8197550 (or 8197525 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 340221133021 its reverse (120331122043), we get a palindrome (460552255064).

The spelling of 340221133021 in words is "three hundred forty billion, two hundred twenty-one million, one hundred thirty-three thousand, twenty-one".