122206855646078 has 32 divisors (see below), whose sum is σ = 219598025391360. Its totient is φ = 49908642114240.

The previous prime is 122206855646059. The next prime is 122206855646081. The reversal of 122206855646078 is 870646558602221.

It is a self number, because there is not a number n which added to its sum of digits gives 122206855646078.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2475602408 + ... + 2475651771.

It is an arithmetic number, because the mean of its divisors is an integer number (6862438293480).

Almost surely, 2^{122206855646078} is an apocalyptic number.

122206855646078 is a deficient number, since it is larger than the sum of its proper divisors (97391169745282).

122206855646078 is a wasteful number, since it uses less digits than its factorization.

122206855646078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951254272.

The product of its (nonzero) digits is 77414400, while the sum is 62.

The spelling of 122206855646078 in words is "one hundred twenty-two trillion, two hundred six billion, eight hundred fifty-five million, six hundred forty-six thousand, seventy-eight".