211121333121030 has 96 divisors (see below), whose sum is σ = 519569179633152. Its totient is φ = 54902794986240.

The previous prime is 211121333120993. The next prime is 211121333121059. The reversal of 211121333121030 is 30121333121112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119296297 + ... + 121053083.

It is an arithmetic number, because the mean of its divisors is an integer number (5412178954512).

Almost surely, 2^{211121333121030} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211121333121030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259784589816576).

211121333121030 is an abundant number, since it is smaller than the sum of its proper divisors (308447846512122).

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

211121333121030 is a wasteful number, since it uses less digits than its factorization.

211121333121030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759262 (or 1759221 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 211121333121030 its reverse (30121333121112), we get a palindrome (241242666242142).

The spelling of 211121333121030 in words is "two hundred eleven trillion, one hundred twenty-one billion, three hundred thirty-three million, one hundred twenty-one thousand, thirty".