42214015021 has 2 divisors, whose sum is σ = 42214015022. Its totient is φ = 42214015020.

The previous prime is 42214015003. The next prime is 42214015087. The reversal of 42214015021 is 12051041224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27149152900 + 15064862121 = 164770^2 + 122739^2 .

It is a cyclic number.

It is not a de Polignac number, because 42214015021 - 2⁷ = 42214014893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42214014983 and 42214015001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42214015621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21107007510 + 21107007511.

It is an arithmetic number, because the mean of its divisors is an integer number (21107007511).

Almost surely, 2^42214015021 is an apocalyptic number.

It is an amenable number.

42214015021 is a deficient number, since it is larger than the sum of its proper divisors (1).

42214015021 is an equidigital number, since it uses as much as digits as its factorization.

42214015021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 42214015021 its reverse (12051041224), we get a palindrome (54265056245).

The spelling of 42214015021 in words is "forty-two billion, two hundred fourteen million, fifteen thousand, twenty-one".