220442432101 has 4 divisors (see below), whose sum is σ = 220449645900. Its totient is φ = 220435218304.

The previous prime is 220442432083. The next prime is 220442432123. The reversal of 220442432101 is 101234244022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118601028225 + 101841403876 = 344385^2 + 319126^2 .

It is a cyclic number.

It is not a de Polignac number, because 220442432101 - 2⁹ = 220442431589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220442432141) 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, 3560866 + ... + 3622243.

It is an arithmetic number, because the mean of its divisors is an integer number (55112411475).

Almost surely, 2^220442432101 is an apocalyptic number.

It is an amenable number.

220442432101 is a deficient number, since it is larger than the sum of its proper divisors (7213799).

220442432101 is an equidigital number, since it uses as much as digits as its factorization.

220442432101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213798.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 220442432101 its reverse (101234244022), we get a palindrome (321676676123).

The spelling of 220442432101 in words is "two hundred twenty billion, four hundred forty-two million, four hundred thirty-two thousand, one hundred one".