10002121221202 has 32 divisors (see below), whose sum is σ = 16433374898304. Its totient is φ = 4528026921600.

The previous prime is 10002121221173. The next prime is 10002121221251. The reversal of 10002121221202 is 20212212120001.

It is a happy 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, 12297603 + ... + 13085689.

It is an arithmetic number, because the mean of its divisors is an integer number (513542965572).

Almost surely, 2^{10002121221202} is an apocalyptic number.

10002121221202 is a deficient number, since it is larger than the sum of its proper divisors (6431253677102).

10002121221202 is a wasteful number, since it uses less digits than its factorization.

10002121221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790434.

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

Adding to 10002121221202 its reverse (20212212120001), we get a palindrome (30214333341203).

The spelling of 10002121221202 in words is "ten trillion, two billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred two".