122021220122012 has 6 divisors (see below), whose sum is σ = 213537135213528. Its totient is φ = 61010610061004.

The previous prime is 122021220122003. The next prime is 122021220122017. The reversal of 122021220122012 is 210221022120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021220122017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15252652515248 + ... + 15252652515255.

It is an arithmetic number, because the mean of its divisors is an integer number (35589522535588).

Almost surely, 2^{122021220122012} is an apocalyptic number.

It is an amenable number.

122021220122012 is a deficient number, since it is larger than the sum of its proper divisors (91515915091516).

122021220122012 is a wasteful number, since it uses less digits than its factorization.

122021220122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30505305030507 (or 30505305030505 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122021220122012 its reverse (210221022120221), we get a palindrome (332242242242233).

The spelling of 122021220122012 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, twelve".