210102500442 has 8 divisors (see below), whose sum is σ = 420205000896. Its totient is φ = 70034166812.

The previous prime is 210102500407. The next prime is 210102500467. The reversal of 210102500442 is 244005201012.

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

210102500442 is an admirable number.

It is a super-2 number, since 2×210102500442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17508541698 + ... + 17508541709.

It is an arithmetic number, because the mean of its divisors is an integer number (52525625112).

Almost surely, 2^210102500442 is an apocalyptic number.

210102500442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210102500442 is a wasteful number, since it uses less digits than its factorization.

210102500442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35017083412.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 210102500442 its reverse (244005201012), we get a palindrome (454107701454).

The spelling of 210102500442 in words is "two hundred ten billion, one hundred two million, five hundred thousand, four hundred forty-two".