21120100220002 has 8 divisors (see below), whose sum is σ = 36205886091456. Its totient is φ = 9051471522852.

The previous prime is 21120100219991. The next prime is 21120100220017. The reversal of 21120100220002 is 20002200102112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 754289293558 + ... + 754289293585.

It is an arithmetic number, because the mean of its divisors is an integer number (4525735761432).

Almost surely, 2^{21120100220002} is an apocalyptic number.

21120100220002 is a deficient number, since it is larger than the sum of its proper divisors (15085785871454).

21120100220002 is a wasteful number, since it uses less digits than its factorization.

21120100220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508578587152.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21120100220002 its reverse (20002200102112), we get a palindrome (41122300322114).

The spelling of 21120100220002 in words is "twenty-one trillion, one hundred twenty billion, one hundred million, two hundred twenty thousand, two".