210142122031144 has 8 divisors (see below), whose sum is σ = 394016478808410. Its totient is φ = 105071061015568.

The previous prime is 210142122031123. The next prime is 210142122031159. The reversal of 210142122031144 is 441130221241012.

It can be written as a sum of positive squares in only one way, i.e., 132741505822500 + 77400616208644 = 11521350^2 + 8797762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×210142122031144² (a number of 29 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 as a sum of consecutive naturals, namely, 13133882626939 + ... + 13133882626954.

Almost surely, 2^{210142122031144} is an apocalyptic number.

It is an amenable number.

210142122031144 is a deficient number, since it is larger than the sum of its proper divisors (183874356777266).

210142122031144 is a wasteful number, since it uses less digits than its factorization.

210142122031144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26267765253899 (or 26267765253895 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 210142122031144 its reverse (441130221241012), we get a palindrome (651272343272156).

The spelling of 210142122031144 in words is "two hundred ten trillion, one hundred forty-two billion, one hundred twenty-two million, thirty-one thousand, one hundred forty-four".