21120020001202 has 16 divisors (see below), whose sum is σ = 31878112566240. Its totient is φ = 10493997628032.

The previous prime is 21120020001131. The next prime is 21120020001221. The reversal of 21120020001202 is 20210002002112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991327 + ... + 6574402.

It is an arithmetic number, because the mean of its divisors is an integer number (1992382035390).

Almost surely, 2^{21120020001202} is an apocalyptic number.

21120020001202 is a deficient number, since it is larger than the sum of its proper divisors (10758092565038).

21120020001202 is a wasteful number, since it uses less digits than its factorization.

21120020001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574457.

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

Adding to 21120020001202 its reverse (20210002002112), we get a palindrome (41330022003314).

The spelling of 21120020001202 in words is "twenty-one trillion, one hundred twenty billion, twenty million, one thousand, two hundred two".