201221100011002 has 16 divisors (see below), whose sum is σ = 303895372845312. Its totient is φ = 99924360019200.

The previous prime is 201221100010963. The next prime is 201221100011023. The reversal of 201221100011002 is 200110001122102.

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, 429171124 + ... + 429639727.

It is an arithmetic number, because the mean of its divisors is an integer number (18993460802832).

Almost surely, 2^{201221100011002} is an apocalyptic number.

201221100011002 is a deficient number, since it is larger than the sum of its proper divisors (102674272834310).

201221100011002 is a wasteful number, since it uses less digits than its factorization.

201221100011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858811653.

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

Adding to 201221100011002 its reverse (200110001122102), we get a palindrome (401331101133104).

The spelling of 201221100011002 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred million, eleven thousand, two".