42265372826221 has 4 divisors (see below), whose sum is σ = 42265471087744. Its totient is φ = 42265274564700.

The previous prime is 42265372826161. The next prime is 42265372826267. The reversal of 42265372826221 is 12262827356224.

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 42265372826221 - 2¹⁷ = 42265372695149 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 (42265372826321) 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, 48482715 + ... + 49346776.

It is an arithmetic number, because the mean of its divisors is an integer number (10566367771936).

Almost surely, 2^{42265372826221} is an apocalyptic number.

It is an amenable number.

42265372826221 is a deficient number, since it is larger than the sum of its proper divisors (98261523).

42265372826221 is an equidigital number, since it uses as much as digits as its factorization.

42265372826221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98261522.

The product of its digits is 7741440, while the sum is 52.

The spelling of 42265372826221 in words is "forty-two trillion, two hundred sixty-five billion, three hundred seventy-two million, eight hundred twenty-six thousand, two hundred twenty-one".