211210121011120 has 480 divisors, whose sum is σ = 694552415800320. Its totient is φ = 58698253393920.

The previous prime is 211210121011073. The next prime is 211210121011157. The reversal of 211210121011120 is 21110121012112.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 211210121011094 and 211210121011103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6345417 + ... + 21510103.

It is an arithmetic number, because the mean of its divisors is an integer number (1446984199584).

Almost surely, 2^{211210121011120} is an apocalyptic number.

211210121011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211210121011120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347276207900160).

211210121011120 is an abundant number, since it is smaller than the sum of its proper divisors (483342294789200).

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

211210121011120 is a wasteful number, since it uses less digits than its factorization.

211210121011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164761 (or 15164748 counting only the distinct ones).

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

Adding to 211210121011120 its reverse (21110121012112), we get a palindrome (232320242023232).

The spelling of 211210121011120 in words is "two hundred eleven trillion, two hundred ten billion, one hundred twenty-one million, eleven thousand, one hundred twenty".