10212211221210 has 128 divisors (see below), whose sum is σ = 28909769564160. Its totient is φ = 2556372261888.

The previous prime is 10212211221203. The next prime is 10212211221253. The reversal of 10212211221210 is 1212211221201.

10212211221210 is a `hidden beast` number, since 1 + 0 + 21 + 2 + 211 + 221 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 63 ways as a sum of consecutive naturals, for example, 1146577 + ... + 4662516.

It is an arithmetic number, because the mean of its divisors is an integer number (225857574720).

Almost surely, 2^{10212211221210} is an apocalyptic number.

10212211221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10212211221210 is an abundant number, since it is smaller than the sum of its proper divisors (18697558342950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10212211221210 is a wasteful number, since it uses less digits than its factorization.

10212211221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809509 (or 5809503 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10212211221210 its reverse (1212211221201), we get a palindrome (11424422442411).

Subtracting from 10212211221210 its reverse (1212211221201), we obtain a palindrome (9000000000009).

The spelling of 10212211221210 in words is "ten trillion, two hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, two hundred ten".