42302021251522 has 8 divisors (see below), whose sum is σ = 67185563164236. Its totient is φ = 19906833530112.

The previous prime is 42302021251519. The next prime is 42302021251547. The reversal of 42302021251522 is 22515212020324.

42302021251522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40941301334521 + 1360719917001 = 6398539^2 + 1166499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42302021251522² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622088547783 + ... + 622088547850.

Almost surely, 2^{42302021251522} is an apocalyptic number.

42302021251522 is a deficient number, since it is larger than the sum of its proper divisors (24883541912714).

42302021251522 is a wasteful number, since it uses less digits than its factorization.

42302021251522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244177095652.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 42302021251522 its reverse (22515212020324), we get a palindrome (64817233271846).

The spelling of 42302021251522 in words is "forty-two trillion, three hundred two billion, twenty-one million, two hundred fifty-one thousand, five hundred twenty-two".