10221221100012 has 48 divisors (see below), whose sum is σ = 25698499733760. Its totient is φ = 3143227146048.

The previous prime is 10221221100007. The next prime is 10221221100031. The reversal of 10221221100012 is 21000112212201.

It is a junction number, because it is equal to n+sod(n) for n = 10221221099964 and 10221221100000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18095562 + ... + 18651857.

It is an arithmetic number, because the mean of its divisors is an integer number (535385411120).

Almost surely, 2^{10221221100012} is an apocalyptic number.

10221221100012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10221221100012 is an abundant number, since it is smaller than the sum of its proper divisors (15477278633748).

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

10221221100012 is a wasteful number, since it uses less digits than its factorization.

10221221100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36749222 (or 36749220 counting only the distinct ones).

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

Adding to 10221221100012 its reverse (21000112212201), we get a palindrome (31221333312213).

The spelling of 10221221100012 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred thousand, twelve".