210124402221 has 8 divisors (see below), whose sum is σ = 280170918720. Its totient is φ = 140080410272.

The previous prime is 210124402127. The next prime is 210124402223. The reversal of 210124402221 is 122204421012.

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 210124402221 - 2¹⁰ = 210124401197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210124402223) 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, 427545 + ... + 776558.

It is an arithmetic number, because the mean of its divisors is an integer number (35021364840).

Almost surely, 2^210124402221 is an apocalyptic number.

It is an amenable number.

210124402221 is a deficient number, since it is larger than the sum of its proper divisors (70046516499).

210124402221 is a wasteful number, since it uses less digits than its factorization.

210124402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262275.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 210124402221 its reverse (122204421012), we get a palindrome (332328823233).

The spelling of 210124402221 in words is "two hundred ten billion, one hundred twenty-four million, four hundred two thousand, two hundred twenty-one".