42003322302221 has 6 divisors (see below), whose sum is σ = 48861007576110. Its totient is φ = 36002847687576.

The previous prime is 42003322302217. The next prime is 42003322302251. The reversal of 42003322302221 is 12220322330024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33524679002500 + 8478643299721 = 5790050^2 + 2911811^2 .

It is not a de Polignac number, because 42003322302221 - 2² = 42003322302217 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 (42003322302251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 428605329566 + ... + 428605329663.

It is an arithmetic number, because the mean of its divisors is an integer number (8143501262685).

Almost surely, 2^{42003322302221} is an apocalyptic number.

It is an amenable number.

42003322302221 is a deficient number, since it is larger than the sum of its proper divisors (6857685273889).

42003322302221 is an equidigital number, since it uses as much as digits as its factorization.

42003322302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857210659243 (or 857210659236 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 42003322302221 its reverse (12220322330024), we get a palindrome (54223644632245).

The spelling of 42003322302221 in words is "forty-two trillion, three billion, three hundred twenty-two million, three hundred two thousand, two hundred twenty-one".