10001120021212 has 48 divisors (see below), whose sum is σ = 18255829616640. Its totient is φ = 4788197281728.

The previous prime is 10001120021203. The next prime is 10001120021239. The reversal of 10001120021212 is 21212002110001.

It is a junction number, because it is equal to n+sod(n) for n = 10001120021192 and 10001120021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6068263 + ... + 7538305.

It is an arithmetic number, because the mean of its divisors is an integer number (380329783680).

Almost surely, 2^{10001120021212} is an apocalyptic number.

It is an amenable number.

10001120021212 is a deficient number, since it is larger than the sum of its proper divisors (8254709595428).

10001120021212 is a wasteful number, since it uses less digits than its factorization.

10001120021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470562 (or 1470560 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10001120021212 its reverse (21212002110001), we get a palindrome (31213122131213).

The spelling of 10001120021212 in words is "ten trillion, one billion, one hundred twenty million, twenty-one thousand, two hundred twelve".