122203431278446 has 32 divisors (see below), whose sum is σ = 215155120439232. Its totient is φ = 50957039036160.

The previous prime is 122203431278407. The next prime is 122203431278447. The reversal of 122203431278446 is 644872134302221.

It is a self number, because there is not a number n which added to its sum of digits gives 122203431278446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122203431278447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75854956 + ... + 77449216.

It is an arithmetic number, because the mean of its divisors is an integer number (6723597513726).

Almost surely, 2^{122203431278446} is an apocalyptic number.

122203431278446 is a deficient number, since it is larger than the sum of its proper divisors (92951689160786).

122203431278446 is a wasteful number, since it uses less digits than its factorization.

122203431278446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742284.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 122203431278446 in words is "one hundred twenty-two trillion, two hundred three billion, four hundred thirty-one million, two hundred seventy-eight thousand, four hundred forty-six".