122212021012 has 12 divisors (see below), whose sum is σ = 215233273780. Its totient is φ = 60716799936.

The previous prime is 122212021007. The next prime is 122212021069. The reversal of 122212021012 is 210120212221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43112708496 + 79099312516 = 207636^2 + 281246^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 97301937 + ... + 97303192.

Almost surely, 2^122212021012 is an apocalyptic number.

It is an amenable number.

122212021012 is a deficient number, since it is larger than the sum of its proper divisors (93021252768).

122212021012 is a wasteful number, since it uses less digits than its factorization.

122212021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194605290 (or 194605288 counting only the distinct ones).

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

Adding to 122212021012 its reverse (210120212221), we get a palindrome (332332233233).

The spelling of 122212021012 in words is "one hundred twenty-two billion, two hundred twelve million, twenty-one thousand, twelve".