10221210222012 has 48 divisors (see below), whose sum is σ = 26504325523200. Its totient is φ = 3406441152240.

The previous prime is 10221210222001. The next prime is 10221210222019. The reversal of 10221210222012 is 21022201212201.

It is a happy number.

10221210222012 is a `hidden beast` number, since 1 + 0 + 221 + 210 + 2 + 220 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221210222019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8147064 + ... + 9317567.

It is an arithmetic number, because the mean of its divisors is an integer number (552173448400).

Almost surely, 2^{10221210222012} is an apocalyptic number.

10221210222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10221210222012 is an abundant number, since it is smaller than the sum of its proper divisors (16283115301188).

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

10221210222012 is a wasteful number, since it uses less digits than its factorization.

10221210222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17470063 (or 17470055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10221210222012 its reverse (21022201212201), we get a palindrome (31243411434213).

The spelling of 10221210222012 in words is "ten trillion, two hundred twenty-one billion, two hundred ten million, two hundred twenty-two thousand, twelve".