220121010000212 has 12 divisors (see below), whose sum is σ = 387167157184500. Its totient is φ = 109501822233216.

The previous prime is 220121010000179. The next prime is 220121010000293. The reversal of 220121010000212 is 212000010121022.

It can be written as a sum of positive squares in 2 ways, for example, as 198610281383056 + 21510728617156 = 14092916^2 + 4637966^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 139670690837 + ... + 139670692412.

It is an arithmetic number, because the mean of its divisors is an integer number (32263929765375).

Almost surely, 2^{220121010000212} is an apocalyptic number.

It is an amenable number.

220121010000212 is a deficient number, since it is larger than the sum of its proper divisors (167046147184288).

220121010000212 is a wasteful number, since it uses less digits than its factorization.

220121010000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279341383450 (or 279341383448 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220121010000212 its reverse (212000010121022), we get a palindrome (432121020121234).

The spelling of 220121010000212 in words is "two hundred twenty trillion, one hundred twenty-one billion, ten million, two hundred twelve", and thus it is an aban number.