210212133421 has 8 divisors (see below), whose sum is σ = 223696036800. Its totient is φ = 196852506048.

The previous prime is 210212133419. The next prime is 210212133433. The reversal of 210212133421 is 124331212012.

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 210212133421 - 2¹ = 210212133419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210212133392 and 210212133401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212131421) 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, 31065511 + ... + 31072276.

It is an arithmetic number, because the mean of its divisors is an integer number (27962004600).

Almost surely, 2^210212133421 is an apocalyptic number.

It is an amenable number.

210212133421 is a deficient number, since it is larger than the sum of its proper divisors (13483903379).

210212133421 is a wasteful number, since it uses less digits than its factorization.

210212133421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62138003.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 210212133421 its reverse (124331212012), we get a palindrome (334543345433).

The spelling of 210212133421 in words is "two hundred ten billion, two hundred twelve million, one hundred thirty-three thousand, four hundred twenty-one".