340220122231221 has 32 divisors (see below), whose sum is σ = 504190910430720. Its totient is φ = 226740924770112.

The previous prime is 340220122231141. The next prime is 340220122231237. The reversal of 340220122231221 is 122132221022043.

340220122231221 is a `hidden beast` number, since 3 + 4 + 0 + 2 + 201 + 2 + 2 + 231 + 221 = 666.

It is not a de Polignac number, because 340220122231221 - 2⁴¹ = 338021098975669 is a prime.

It is a super-2 number, since 2×340220122231221² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340220122231261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3722397295 + ... + 3722488691.

It is an arithmetic number, because the mean of its divisors is an integer number (15755965950960).

Almost surely, 2^{340220122231221} is an apocalyptic number.

It is an amenable number.

340220122231221 is a deficient number, since it is larger than the sum of its proper divisors (163970788199499).

340220122231221 is a wasteful number, since it uses less digits than its factorization.

340220122231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133962 (or 133956 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 340220122231221 its reverse (122132221022043), we get a palindrome (462352343253264).

The spelling of 340220122231221 in words is "three hundred forty trillion, two hundred twenty billion, one hundred twenty-two million, two hundred thirty-one thousand, two hundred twenty-one".