10001212021122 has 48 divisors (see below), whose sum is σ = 23270232951072. Its totient is φ = 2857230391680.

The previous prime is 10001212021103. The next prime is 10001212021217. The reversal of 10001212021122 is 22112021210001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1723722 + ... + 4793082.

It is an arithmetic number, because the mean of its divisors is an integer number (484796519814).

Almost surely, 2^{10001212021122} is an apocalyptic number.

10001212021122 is an abundant number, since it is smaller than the sum of its proper divisors (13269020929950).

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

10001212021122 is a wasteful number, since it uses less digits than its factorization.

10001212021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080463 (or 3080456 counting only the distinct ones).

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

Adding to 10001212021122 its reverse (22112021210001), we get a palindrome (32113233231123).

The spelling of 10001212021122 in words is "ten trillion, one billion, two hundred twelve million, twenty-one thousand, one hundred twenty-two".