1201100102121 has 16 divisors (see below), whose sum is σ = 1608065222400. Its totient is φ = 797435058000.

The previous prime is 1201100102051. The next prime is 1201100102123. The reversal of 1201100102121 is 1212010011021.

It is not a de Polignac number, because 1201100102121 - 2¹¹ = 1201100100073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201100102097 and 1201100102106.

It is not an unprimeable number, because it can be changed into a prime (1201100102123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5650830 + ... + 5859528.

It is an arithmetic number, because the mean of its divisors is an integer number (100504076400).

Almost surely, 2^{1201100102121} is an apocalyptic number.

It is an amenable number.

1201100102121 is a deficient number, since it is larger than the sum of its proper divisors (406965120279).

1201100102121 is a wasteful number, since it uses less digits than its factorization.

1201100102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216596.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201100102121 its reverse (1212010011021), we get a palindrome (2413110113142).

The spelling of 1201100102121 in words is "one trillion, two hundred one billion, one hundred million, one hundred two thousand, one hundred twenty-one".