21011120201210 has 32 divisors (see below), whose sum is σ = 41785798136832. Its totient is φ = 7566152746240.

The previous prime is 21011120201189. The next prime is 21011120201317. The reversal of 21011120201210 is 1210202111012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2686840106 + ... + 2686847925.

It is an arithmetic number, because the mean of its divisors is an integer number (1305806191776).

Almost surely, 2^{21011120201210} is an apocalyptic number.

21011120201210 is a deficient number, since it is larger than the sum of its proper divisors (20774677935622).

21011120201210 is a wasteful number, since it uses less digits than its factorization.

21011120201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5373688078.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21011120201210 its reverse (1210202111012), we get a palindrome (22221322312222).

The spelling of 21011120201210 in words is "twenty-one trillion, eleven billion, one hundred twenty million, two hundred one thousand, two hundred ten".