201212021122 has 24 divisors (see below), whose sum is σ = 351160303104. Its totient is φ = 86217547752.

The previous prime is 201212021119. The next prime is 201212021123. The reversal of 201212021122 is 221120212102.

It is a happy number.

201212021122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201212021096 and 201212021105.

It is not an unprimeable number, because it can be changed into a prime (201212021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340023 + ... + 719749.

It is an arithmetic number, because the mean of its divisors is an integer number (14631679296).

Almost surely, 2^201212021122 is an apocalyptic number.

201212021122 is a deficient number, since it is larger than the sum of its proper divisors (149948281982).

201212021122 is a wasteful number, since it uses less digits than its factorization.

201212021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385150 (or 385143 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201212021122 its reverse (221120212102), we get a palindrome (422332233224).

The spelling of 201212021122 in words is "two hundred one billion, two hundred twelve million, twenty-one thousand, one hundred twenty-two".