10222221221212 has 96 divisors (see below), whose sum is σ = 24793440989184. Its totient is φ = 3557732198400.

The previous prime is 10222221221207. The next prime is 10222221221249. The reversal of 10222221221212 is 21212212222201.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 31 ways as a sum of consecutive naturals, for example, 41053333 + ... + 41301580.

It is an arithmetic number, because the mean of its divisors is an integer number (258265010304).

Almost surely, 2^{10222221221212} is an apocalyptic number.

It is an amenable number.

10222221221212 is an abundant number, since it is smaller than the sum of its proper divisors (14571219767972).

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

10222221221212 is a wasteful number, since it uses less digits than its factorization.

10222221221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82354979 (or 82354977 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 10222221221212 its reverse (21212212222201), we get a palindrome (31434433443413).

The spelling of 10222221221212 in words is "ten trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".