221010120001212 has 24 divisors (see below), whose sum is σ = 518571231292800. Its totient is φ = 73258475530416.

The previous prime is 221010120001201. The next prime is 221010120001243. The reversal of 221010120001212 is 212100021010122.

221010120001212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221010120001191 and 221010120001200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51445556512 + ... + 51445560807.

It is an arithmetic number, because the mean of its divisors is an integer number (21607134637200).

Almost surely, 2^{221010120001212} is an apocalyptic number.

It is an amenable number.

221010120001212 is an abundant number, since it is smaller than the sum of its proper divisors (297561111291588).

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

221010120001212 is a wasteful number, since it uses less digits than its factorization.

221010120001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102891117505 (or 102891117503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221010120001212 its reverse (212100021010122), we get a palindrome (433110141011334).

The spelling of 221010120001212 in words is "two hundred twenty-one trillion, ten billion, one hundred twenty million, one thousand, two hundred twelve".