10121220220012 has 24 divisors (see below), whose sum is σ = 20162430796032. Its totient is φ = 4400530530000.

The previous prime is 10121220219991. The next prime is 10121220220019. The reversal of 10121220220012 is 21002202212101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10121220220019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5000601864 + ... + 5000603887.

It is an arithmetic number, because the mean of its divisors is an integer number (840101283168).

Almost surely, 2^{10121220220012} is an apocalyptic number.

It is an amenable number.

10121220220012 is a deficient number, since it is larger than the sum of its proper divisors (10041210576020).

10121220220012 is a wasteful number, since it uses less digits than its factorization.

10121220220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001205789 (or 10001205787 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10121220220012 its reverse (21002202212101), we get a palindrome (31123422432113).

The spelling of 10121220220012 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twenty thousand, twelve".