21001112010202 has 16 divisors (see below), whose sum is σ = 31685237568000. Its totient is φ = 10439430874560.

The previous prime is 21001112010199. The next prime is 21001112010233. The reversal of 21001112010202 is 20201021110012.

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, 15530127 + ... + 16828162.

It is an arithmetic number, because the mean of its divisors is an integer number (1980327348000).

Almost surely, 2^{21001112010202} is an apocalyptic number.

21001112010202 is a deficient number, since it is larger than the sum of its proper divisors (10684125557798).

21001112010202 is a wasteful number, since it uses less digits than its factorization.

21001112010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32360181.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21001112010202 its reverse (20201021110012), we get a palindrome (41202133120214).

The spelling of 21001112010202 in words is "twenty-one trillion, one billion, one hundred twelve million, ten thousand, two hundred two".