122017642212 has 24 divisors (see below), whose sum is σ = 284748752512. Its totient is φ = 40666701600.

The previous prime is 122017642207. The next prime is 122017642247. The reversal of 122017642212 is 212246710221.

It is a self number, because there is not a number n which added to its sum of digits gives 122017642212.

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 7 ways as a sum of consecutive naturals, for example, 643339 + ... + 811122.

Almost surely, 2^122017642212 is an apocalyptic number.

122017642212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122017642212 is an abundant number, since it is smaller than the sum of its proper divisors (162731110300).

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

122017642212 is a wasteful number, since it uses less digits than its factorization.

122017642212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461459 (or 1461457 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 122017642212 in words is "one hundred twenty-two billion, seventeen million, six hundred forty-two thousand, two hundred twelve".