10221212212012 has 24 divisors (see below), whose sum is σ = 18474266504736. Its totient is φ = 4945492176768.

The previous prime is 10221212211997. The next prime is 10221212212061. The reversal of 10221212212012 is 21021221212201.

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, 330212368 + ... + 330243319.

It is an arithmetic number, because the mean of its divisors is an integer number (769761104364).

Almost surely, 2^{10221212212012} is an apocalyptic number.

It is an amenable number.

10221212212012 is a deficient number, since it is larger than the sum of its proper divisors (8253054292724).

10221212212012 is a wasteful number, since it uses less digits than its factorization.

10221212212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660455817 (or 660455815 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10221212212012 its reverse (21021221212201), we get a palindrome (31242433424213).

The spelling of 10221212212012 in words is "ten trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, twelve".