10221100101212 has 192 divisors, whose sum is σ = 24852078720000. Its totient is φ = 3548031621120.

The previous prime is 10221100101211. The next prime is 10221100101263. The reversal of 10221100101212 is 21210100112201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221100101211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 417192539 + ... + 417217037.

It is an arithmetic number, because the mean of its divisors is an integer number (129437910000).

Almost surely, 2^{10221100101212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221100101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12426039360000).

10221100101212 is an abundant number, since it is smaller than the sum of its proper divisors (14630978618788).

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

10221100101212 is a wasteful number, since it uses less digits than its factorization.

10221100101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28156 (or 28154 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10221100101212 its reverse (21210100112201), we get a palindrome (31431200213413).

The spelling of 10221100101212 in words is "ten trillion, two hundred twenty-one billion, one hundred million, one hundred one thousand, two hundred twelve".