122100008 has 16 divisors (see below), whose sum is σ = 238891680. Its totient is φ = 58395568.

The previous prime is 122100007. The next prime is 122100029. The reversal of 122100008 is 800001221.

It is a junction number, because it is equal to n+sod(n) for n = 122099965 and 122100001.

It is not an unprimeable number, because it can be changed into a prime (122100007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331610 + ... + 331977.

It is an arithmetic number, because the mean of its divisors is an integer number (14930730).

Almost surely, 2^122100008 is an apocalyptic number.

It is an amenable number.

122100008 is a deficient number, since it is larger than the sum of its proper divisors (116791672).

122100008 is a wasteful number, since it uses less digits than its factorization.

122100008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663616 (or 663612 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 122100008 is about 11049.8872392437. The cubic root of 122100008 is about 496.1030504754.

Adding to 122100008 its reverse (800001221), we get a palindrome (922101229).

The spelling of 122100008 in words is "one hundred twenty-two million, one hundred thousand, eight".