211030221211120 has 20 divisors (see below), whose sum is σ = 490645264316040. Its totient is φ = 84412088484416.

The previous prime is 211030221211109. The next prime is 211030221211127. The reversal of 211030221211120 is 21112122030112.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×211030221211120² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211030221211127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318938882490 + ... + 1318938882649.

It is an arithmetic number, because the mean of its divisors is an integer number (24532263215802).

Almost surely, 2^{211030221211120} is an apocalyptic number.

211030221211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211030221211120 is an abundant number, since it is smaller than the sum of its proper divisors (279615043104920).

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

211030221211120 is a wasteful number, since it uses less digits than its factorization.

211030221211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637877765152 (or 2637877765146 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211030221211120 its reverse (21112122030112), we get a palindrome (232142343241232).

The spelling of 211030221211120 in words is "two hundred eleven trillion, thirty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred twenty".