121002011101021 has 8 divisors (see below), whose sum is σ = 121068324000000. Its totient is φ = 120935699958480.

The previous prime is 121002011100953. The next prime is 121002011101057. The reversal of 121002011101021 is 120101110200121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121002011101021 - 2²³ = 121002002712413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121002011100992 and 121002011101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002011101721) 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, 151806480 + ... + 152601478.

It is an arithmetic number, because the mean of its divisors is an integer number (15133540500000).

Almost surely, 2^{121002011101021} is an apocalyptic number.

It is an amenable number.

121002011101021 is a deficient number, since it is larger than the sum of its proper divisors (66312898979).

121002011101021 is an equidigital number, since it uses as much as digits as its factorization.

121002011101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878219.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121002011101021 its reverse (120101110200121), we get a palindrome (241103121301142).

The spelling of 121002011101021 in words is "one hundred twenty-one trillion, two billion, eleven million, one hundred one thousand, twenty-one".