42201215251 has 8 divisors (see below), whose sum is σ = 47014616880. Its totient is φ = 37611692832.

The previous prime is 42201215249. The next prime is 42201215323. The reversal of 42201215251 is 15251210224.

42201215251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42201215251 - 2¹ = 42201215249 is a prime.

It is a super-2 number, since 2×42201215251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42201215201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55969405 + ... + 55970158.

It is an arithmetic number, because the mean of its divisors is an integer number (5876827110).

Almost surely, 2^42201215251 is an apocalyptic number.

42201215251 is a deficient number, since it is larger than the sum of its proper divisors (4813401629).

42201215251 is a wasteful number, since it uses less digits than its factorization.

42201215251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111939605.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 42201215251 its reverse (15251210224), we get a palindrome (57452425475).

The spelling of 42201215251 in words is "forty-two billion, two hundred one million, two hundred fifteen thousand, two hundred fifty-one".