211022121120 has 96 divisors (see below), whose sum is σ = 668797964352. Its totient is φ = 55927314432.

The previous prime is 211022121097. The next prime is 211022121161. The reversal of 211022121120 is 21121220112.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211022121120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270317 + ... + 1426796.

It is an arithmetic number, because the mean of its divisors is an integer number (6966645462).

Almost surely, 2^211022121120 is an apocalyptic number.

211022121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211022121120 is an abundant number, since it is smaller than the sum of its proper divisors (457775843232).

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

211022121120 is a wasteful number, since it uses less digits than its factorization.

211022121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697294 (or 2697286 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211022121120 its reverse (21121220112), we get a palindrome (232143341232).

The spelling of 211022121120 in words is "two hundred eleven billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty".