10101221000012 has 12 divisors (see below), whose sum is σ = 17812076726136. Its totient is φ = 5012056221120.

The previous prime is 10101220999949. The next prime is 10101221000021. The reversal of 10101221000012 is 21000012210101.

It is a junction number, because it is equal to n+sod(n) for n = 10101220999957 and 10101221000002.

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 3 ways as a sum of consecutive naturals, for example, 9638569133 + ... + 9638570180.

It is an arithmetic number, because the mean of its divisors is an integer number (1484339727178).

Almost surely, 2^{10101221000012} is an apocalyptic number.

It is an amenable number.

10101221000012 is a deficient number, since it is larger than the sum of its proper divisors (7710855726124).

10101221000012 is a wasteful number, since it uses less digits than its factorization.

10101221000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19277139448 (or 19277139446 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10101221000012 its reverse (21000012210101), we get a palindrome (31101233210113).

The spelling of 10101221000012 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, twelve", and thus it is an aban number.