212201122222012 has 144 divisors (see below), whose sum is σ = 525234253824000. Its totient is φ = 73717087772160.

The previous prime is 212201122221971. The next prime is 212201122222039. The reversal of 212201122222012 is 210222221102212.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 151662012 + ... + 153054787.

It is an arithmetic number, because the mean of its divisors is an integer number (3647460096000).

Almost surely, 2^{212201122222012} is an apocalyptic number.

212201122222012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212201122222012 is an abundant number, since it is smaller than the sum of its proper divisors (313033131601988).

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

212201122222012 is a wasteful number, since it uses less digits than its factorization.

212201122222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304716864 (or 304716855 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 212201122222012 its reverse (210222221102212), we get a palindrome (422423343324224).

The spelling of 212201122222012 in words is "two hundred twelve trillion, two hundred one billion, one hundred twenty-two million, two hundred twenty-two thousand, twelve".