122203656 has 48 divisors (see below), whose sum is σ = 332242560. Its totient is φ = 40577760.

The previous prime is 122203621. The next prime is 122203673. The reversal of 122203656 is 656302221.

122203656 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 0 + 3 + 656 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16381 + ... + 22643.

It is an arithmetic number, because the mean of its divisors is an integer number (6921720).

Almost surely, 2^122203656 is an apocalyptic number.

It is an amenable number.

122203656 is an abundant number, since it is smaller than the sum of its proper divisors (210038904).

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

122203656 is a wasteful number, since it uses less digits than its factorization.

122203656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6546 (or 6539 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 122203656 is about 11054.5762469667. The cubic root of 122203656 is about 496.2433877472.

Adding to 122203656 its reverse (656302221), we get a palindrome (778505877).

It can be divided in two parts, 12220 and 3656, that added together give a square (15876 = 126²).

The spelling of 122203656 in words is "one hundred twenty-two million, two hundred three thousand, six hundred fifty-six".