21120220001202 has 16 divisors (see below), whose sum is σ = 48274788574272. Its totient is φ = 6034348571760.

The previous prime is 21120220001173. The next prime is 21120220001203. The reversal of 21120220001202 is 20210002202112.

It is not an unprimeable number, because it can be changed into a prime (21120220001203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251431190449 + ... + 251431190532.

It is an arithmetic number, because the mean of its divisors is an integer number (3017174285892).

Almost surely, 2^{21120220001202} is an apocalyptic number.

21120220001202 is an abundant number, since it is smaller than the sum of its proper divisors (27154568573070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21120220001202 is a wasteful number, since it uses less digits than its factorization.

21120220001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502862380993.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21120220001202 its reverse (20210002202112), we get a palindrome (41330222203314).

The spelling of 21120220001202 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty million, one thousand, two hundred two".