10001211001100 has 72 divisors (see below), whose sum is σ = 23910006130416. Its totient is φ = 3600796000000.

The previous prime is 10001211001097. The next prime is 10001211001157. The reversal of 10001211001100 is 110011210001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44898851 + ... + 45121050.

It is an arithmetic number, because the mean of its divisors is an integer number (332083418478).

Almost surely, 2^{10001211001100} is an apocalyptic number.

10001211001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001211001100 is an abundant number, since it is smaller than the sum of its proper divisors (13908795129316).

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

10001211001100 is a wasteful number, since it uses less digits than its factorization.

10001211001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90020027 (or 90020020 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10001211001100 its reverse (110011210001), we get a palindrome (10111222211101).

The spelling of 10001211001100 in words is "ten trillion, one billion, two hundred eleven million, one thousand, one hundred".