21120120200002 has 8 divisors (see below), whose sum is σ = 31680355680000. Its totient is φ = 10560001640004.

The previous prime is 21120120199991. The next prime is 21120120200027. The reversal of 21120120200002 is 20000202102112.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28777002 + ... + 29501797.

It is an arithmetic number, because the mean of its divisors is an integer number (3960044460000).

Almost surely, 2^{21120120200002} is an apocalyptic number.

21120120200002 is a deficient number, since it is larger than the sum of its proper divisors (10560235479998).

21120120200002 is a wasteful number, since it uses less digits than its factorization.

21120120200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58460000.

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

Adding to 21120120200002 its reverse (20000202102112), we get a palindrome (41120322302114).

The spelling of 21120120200002 in words is "twenty-one trillion, one hundred twenty billion, one hundred twenty million, two hundred thousand, two".