121001002202021 has 8 divisors (see below), whose sum is σ = 121283365492800. Its totient is φ = 120718652346432.

The previous prime is 121001002201979. The next prime is 121001002202023. The reversal of 121001002202021 is 120202200100121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121001002202021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121001002201987 and 121001002202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001002202023) 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, 14789030 + ... + 21464328.

It is an arithmetic number, because the mean of its divisors is an integer number (15160420686600).

Almost surely, 2^{121001002202021} is an apocalyptic number.

It is an amenable number.

121001002202021 is a deficient number, since it is larger than the sum of its proper divisors (282363290779).

121001002202021 is an equidigital number, since it uses as much as digits as its factorization.

121001002202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717595.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121001002202021 its reverse (120202200100121), we get a palindrome (241203202302142).

The spelling of 121001002202021 in words is "one hundred twenty-one trillion, one billion, two million, two hundred two thousand, twenty-one".