1000121102021 has 8 divisors (see below), whose sum is σ = 1017994469760. Its totient is φ = 982278473152.

The previous prime is 1000121101981. The next prime is 1000121102027. The reversal of 1000121102021 is 1202011210001.

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 1000121102021 - 2⁶ = 1000121101957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000121101993 and 1000121102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000121102027) 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, 7619060 + ... + 7749213.

It is an arithmetic number, because the mean of its divisors is an integer number (127249308720).

Almost surely, 2^{1000121102021} is an apocalyptic number.

It is an amenable number.

1000121102021 is a deficient number, since it is larger than the sum of its proper divisors (17873367739).

1000121102021 is a wasteful number, since it uses less digits than its factorization.

1000121102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15369435.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000121102021 its reverse (1202011210001), we get a palindrome (2202132312022).

The spelling of 1000121102021 in words is "one trillion, one hundred twenty-one million, one hundred two thousand, twenty-one".