122171203772 has 12 divisors (see below), whose sum is σ = 213804151176. Its totient is φ = 61084303440.

The previous prime is 122171203769. The next prime is 122171203789. The reversal of 122171203772 is 277302171221.

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, 94838 + ... + 503325.

It is an arithmetic number, because the mean of its divisors is an integer number (17817012598).

Almost surely, 2^122171203772 is an apocalyptic number.

It is an amenable number.

122171203772 is a deficient number, since it is larger than the sum of its proper divisors (91632947404).

122171203772 is a wasteful number, since it uses less digits than its factorization.

122171203772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649228 (or 649226 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 35.

Adding to 122171203772 its reverse (277302171221), we get a palindrome (399473374993).

The spelling of 122171203772 in words is "one hundred twenty-two billion, one hundred seventy-one million, two hundred three thousand, seven hundred seventy-two".