121022100106 has 16 divisors (see below), whose sum is σ = 181672009920. Its totient is φ = 60464787040.

The previous prime is 121022100079. The next prime is 121022100109. The reversal of 121022100106 is 601001220121.

It is a super-2 number, since 2×121022100106² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121022100106.

It is not an unprimeable number, because it can be changed into a prime (121022100109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29237385 + ... + 29241523.

It is an arithmetic number, because the mean of its divisors is an integer number (11354500620).

Almost surely, 2^121022100106 is an apocalyptic number.

121022100106 is a deficient number, since it is larger than the sum of its proper divisors (60649909814).

121022100106 is a wasteful number, since it uses less digits than its factorization.

121022100106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11789.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121022100106 its reverse (601001220121), we get a palindrome (722023320227).

The spelling of 121022100106 in words is "one hundred twenty-one billion, twenty-two million, one hundred thousand, one hundred six".