1012101020121 has 4 divisors (see below), whose sum is σ = 1349468026832. Its totient is φ = 674734013412.

The previous prime is 1012101020111. The next prime is 1012101020129. The reversal of 1012101020121 is 1210201012101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1012101020121 - 2¹⁷ = 1012100889049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012101020097 and 1012101020106.

It is not an unprimeable number, because it can be changed into a prime (1012101020129) 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, 168683503351 + ... + 168683503356.

It is an arithmetic number, because the mean of its divisors is an integer number (337367006708).

Almost surely, 2^{1012101020121} is an apocalyptic number.

It is an amenable number.

1012101020121 is a deficient number, since it is larger than the sum of its proper divisors (337367006711).

1012101020121 is an equidigital number, since it uses as much as digits as its factorization.

1012101020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337367006710.

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

Adding to 1012101020121 its reverse (1210201012101), we get a palindrome (2222302032222).

The spelling of 1012101020121 in words is "one trillion, twelve billion, one hundred one million, twenty thousand, one hundred twenty-one".