10002121220212 has 24 divisors (see below), whose sum is σ = 19097059881312. Its totient is φ = 4545918453600.

The previous prime is 10002121220207. The next prime is 10002121220227. The reversal of 10002121220212 is 21202212120001.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 12102523 + ... + 12902530.

It is an arithmetic number, because the mean of its divisors is an integer number (795710828388).

Almost surely, 2^{10002121220212} is an apocalyptic number.

It is an amenable number.

10002121220212 is a deficient number, since it is larger than the sum of its proper divisors (9094938661100).

10002121220212 is a wasteful number, since it uses less digits than its factorization.

10002121220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25014159 (or 25014157 counting only the distinct ones).

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

Adding to 10002121220212 its reverse (21202212120001), we get a palindrome (31204333340213).

It can be divided in two parts, 1000 and 2121220212, that added together give a palindrome (2121221212).

The spelling of 10002121220212 in words is "ten trillion, two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twelve".