21213202033210 has 16 divisors (see below), whose sum is σ = 41655014901792. Its totient is φ = 7713891648400.

The previous prime is 21213202033183. The next prime is 21213202033237. The reversal of 21213202033210 is 1233020231212.

It is an interprime number because it is at equal distance from previous prime (21213202033183) and next prime (21213202033237).

It is a Harshad number since it is a multiple of its sum of digits (22).

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 in 7 ways as a sum of consecutive naturals, for example, 96423645496 + ... + 96423645715.

It is an arithmetic number, because the mean of its divisors is an integer number (2603438431362).

Almost surely, 2^{21213202033210} is an apocalyptic number.

21213202033210 is a deficient number, since it is larger than the sum of its proper divisors (20441812868582).

21213202033210 is a wasteful number, since it uses less digits than its factorization.

21213202033210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192847291229.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21213202033210 its reverse (1233020231212), we get a palindrome (22446222264422).

The spelling of 21213202033210 in words is "twenty-one trillion, two hundred thirteen billion, two hundred two million, thirty-three thousand, two hundred ten".