211121011122010 has 24 divisors (see below), whose sum is σ = 417705537709908. Its totient is φ = 76771276771200.

The previous prime is 211121011121971. The next prime is 211121011122019. The reversal of 211121011122010 is 10221110121112.

211121011122010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 178309045204081 + 32811965917929 = 13353241^2 + 5728173^2 .

It is not an unprimeable number, because it can be changed into a prime (211121011122019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87240086031 + ... + 87240088450.

Almost surely, 2^{211121011122010} is an apocalyptic number.

211121011122010 is a deficient number, since it is larger than the sum of its proper divisors (206584526587898).

211121011122010 is a wasteful number, since it uses less digits than its factorization.

211121011122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174480174510 (or 174480174499 counting only the distinct ones).

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

Adding to 211121011122010 its reverse (10221110121112), we get a palindrome (221342121243122).

The spelling of 211121011122010 in words is "two hundred eleven trillion, one hundred twenty-one billion, eleven million, one hundred twenty-two thousand, ten".