122256213663 has 16 divisors (see below), whose sum is σ = 163570077440. Its totient is φ = 81223347456.

The previous prime is 122256213647. The next prime is 122256213679. The reversal of 122256213663 is 366312652221.

It is an interprime number because it is at equal distance from previous prime (122256213647) and next prime (122256213679).

It is not a de Polignac number, because 122256213663 - 2⁴ = 122256213647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122256213683) 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, 7026831 + ... + 7044207.

It is an arithmetic number, because the mean of its divisors is an integer number (10223129840).

Almost surely, 2^122256213663 is an apocalyptic number.

122256213663 is a deficient number, since it is larger than the sum of its proper divisors (41313863777).

122256213663 is a wasteful number, since it uses less digits than its factorization.

122256213663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25326.

The product of its digits is 155520, while the sum is 39.

Adding to 122256213663 its reverse (366312652221), we get a palindrome (488568865884).

The spelling of 122256213663 in words is "one hundred twenty-two billion, two hundred fifty-six million, two hundred thirteen thousand, six hundred sixty-three".