220406352241 has 4 divisors (see below), whose sum is σ = 220409031232. Its totient is φ = 220403673252.

The previous prime is 220406352239. The next prime is 220406352253. The reversal of 220406352241 is 142253604022.

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 220406352241 - 2¹ = 220406352239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220406352641) 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, 1212045 + ... + 1381978.

It is an arithmetic number, because the mean of its divisors is an integer number (55102257808).

Almost surely, 2^220406352241 is an apocalyptic number.

It is an amenable number.

220406352241 is a deficient number, since it is larger than the sum of its proper divisors (2678991).

220406352241 is an equidigital number, since it uses as much as digits as its factorization.

220406352241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678990.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 220406352241 its reverse (142253604022), we get a palindrome (362659956263).

The spelling of 220406352241 in words is "two hundred twenty billion, four hundred six million, three hundred fifty-two thousand, two hundred forty-one".