210421250044 has 24 divisors (see below), whose sum is σ = 378238648928. Its totient is φ = 102353803200.

The previous prime is 210421249921. The next prime is 210421250071. The reversal of 210421250044 is 440052124012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103569 + ... + 1280119.

Almost surely, 2^210421250044 is an apocalyptic number.

It is an amenable number.

210421250044 is a deficient number, since it is larger than the sum of its proper divisors (167817398884).

210421250044 is a wasteful number, since it uses less digits than its factorization.

210421250044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184645 (or 184643 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 210421250044 its reverse (440052124012), we get a palindrome (650473374056).

The spelling of 210421250044 in words is "two hundred ten billion, four hundred twenty-one million, two hundred fifty thousand, forty-four".