345220237201 has 4 divisors (see below), whose sum is σ = 394537413952. Its totient is φ = 295903060452.

The previous prime is 345220237189. The next prime is 345220237223. The reversal of 345220237201 is 102732022543.

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 345220237201 - 2⁹ = 345220236689 is a prime.

It is a super-2 number, since 2×345220237201² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345220237001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24658588365 + ... + 24658588378.

It is an arithmetic number, because the mean of its divisors is an integer number (98634353488).

Almost surely, 2^345220237201 is an apocalyptic number.

It is an amenable number.

345220237201 is a deficient number, since it is larger than the sum of its proper divisors (49317176751).

345220237201 is an equidigital number, since it uses as much as digits as its factorization.

345220237201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49317176750.

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 345220237201 its reverse (102732022543), we get a palindrome (447952259744).

The spelling of 345220237201 in words is "three hundred forty-five billion, two hundred twenty million, two hundred thirty-seven thousand, two hundred one".