122201023212 has 36 divisors (see below), whose sum is σ = 313247699856. Its totient is φ = 40159959840.

The previous prime is 122201023193. The next prime is 122201023229. The reversal of 122201023212 is 212320102221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 23902183 + ... + 23907294.

It is an arithmetic number, because the mean of its divisors is an integer number (8701324996).

Almost surely, 2^122201023212 is an apocalyptic number.

122201023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122201023212 is an abundant number, since it is smaller than the sum of its proper divisors (191046676644).

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

122201023212 is a wasteful number, since it uses less digits than its factorization.

122201023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47809558 (or 47809553 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 122201023212 its reverse (212320102221), we get a palindrome (334521125433).

The spelling of 122201023212 in words is "one hundred twenty-two billion, two hundred one million, twenty-three thousand, two hundred twelve".