120121200106 has 16 divisors (see below), whose sum is σ = 181622045088. Its totient is φ = 59580846000.

The previous prime is 120121200091. The next prime is 120121200107. The reversal of 120121200106 is 601002121021.

It is a super-2 number, since 2×120121200106² (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 120121200106.

It is not an unprimeable number, because it can be changed into a prime (120121200107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666556 + ... + 827368.

It is an arithmetic number, because the mean of its divisors is an integer number (11351377818).

Almost surely, 2^120121200106 is an apocalyptic number.

120121200106 is a deficient number, since it is larger than the sum of its proper divisors (61500844982).

120121200106 is a wasteful number, since it uses less digits than its factorization.

120121200106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163797.

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

Adding to 120121200106 its reverse (601002121021), we get a palindrome (721123321127).

The spelling of 120121200106 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred thousand, one hundred six".