211121001222 has 64 divisors (see below), whose sum is σ = 437888263680. Its totient is φ = 67805565696.

The previous prime is 211121001163. The next prime is 211121001251. The reversal of 211121001222 is 222100121112.

211121001222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12735183 + ... + 12751749.

It is an arithmetic number, because the mean of its divisors is an integer number (6842004120).

Almost surely, 2^211121001222 is an apocalyptic number.

211121001222 is an abundant number, since it is smaller than the sum of its proper divisors (226767262458).

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

211121001222 is a wasteful number, since it uses less digits than its factorization.

211121001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17165.

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

Adding to 211121001222 its reverse (222100121112), we get a palindrome (433221122334).

The spelling of 211121001222 in words is "two hundred eleven billion, one hundred twenty-one million, one thousand, two hundred twenty-two".