201122222012 has 6 divisors (see below), whose sum is σ = 351963888528. Its totient is φ = 100561111004.

The previous prime is 201122221987. The next prime is 201122222017. The reversal of 201122222012 is 210222221102.

It is a happy number.

201122222012 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 not an unprimeable number, because it can be changed into a prime (201122222017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25140277748 + ... + 25140277755.

It is an arithmetic number, because the mean of its divisors is an integer number (58660648088).

Almost surely, 2^201122222012 is an apocalyptic number.

It is an amenable number.

201122222012 is a deficient number, since it is larger than the sum of its proper divisors (150841666516).

201122222012 is a wasteful number, since it uses less digits than its factorization.

201122222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50280555507 (or 50280555505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201122222012 its reverse (210222221102), we get a palindrome (411344443114).

The spelling of 201122222012 in words is "two hundred one billion, one hundred twenty-two million, two hundred twenty-two thousand, twelve".