210235234521 has 16 divisors (see below), whose sum is σ = 301910394240. Its totient is φ = 129360888960.

The previous prime is 210235234493. The next prime is 210235234541. The reversal of 210235234521 is 125432532012.

It is not a de Polignac number, because 210235234521 - 2¹³ = 210235226329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210235234541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49276 + ... + 650306.

It is an arithmetic number, because the mean of its divisors is an integer number (18869399640).

Almost surely, 2^210235234521 is an apocalyptic number.

It is an amenable number.

210235234521 is a deficient number, since it is larger than the sum of its proper divisors (91675159719).

210235234521 is a wasteful number, since it uses less digits than its factorization.

210235234521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610016.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 210235234521 its reverse (125432532012), we get a palindrome (335667766533).

The spelling of 210235234521 in words is "two hundred ten billion, two hundred thirty-five million, two hundred thirty-four thousand, five hundred twenty-one".