211121102110000 has 50 divisors (see below), whose sum is σ = 511145300342732. Its totient is φ = 84448440840000.

The previous prime is 211121102109947. The next prime is 211121102110003. The reversal of 211121102110000 is 11201121112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×211121102110000² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211121102110003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10556045106 + ... + 10556065105.

Almost surely, 2^{211121102110000} is an apocalyptic number.

211121102110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211121102110000 is an abundant number, since it is smaller than the sum of its proper divisors (300024198232732).

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

211121102110000 is an equidigital number, since it uses as much as digits as its factorization.

211121102110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21112110239 (or 21112110218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211121102110000 its reverse (11201121112), we get a palindrome (211132303231112).

The spelling of 211121102110000 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred two million, one hundred ten thousand".