1021233000121 has 4 divisors (see below), whose sum is σ = 1025301657744. Its totient is φ = 1017164342500.

The previous prime is 1021233000113. The next prime is 1021233000133. The reversal of 1021233000121 is 1210003321201.

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 a cyclic number.

It is not a de Polignac number, because 1021233000121 - 2³ = 1021233000113 is a prime.

It is a super-2 number, since 2×1021233000121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021233000095 and 1021233000104.

It is not an unprimeable number, because it can be changed into a prime (1021233000721) 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, 2034328435 + ... + 2034328936.

It is an arithmetic number, because the mean of its divisors is an integer number (256325414436).

Almost surely, 2^{1021233000121} is an apocalyptic number.

It is an amenable number.

1021233000121 is a deficient number, since it is larger than the sum of its proper divisors (4068657623).

1021233000121 is an equidigital number, since it uses as much as digits as its factorization.

1021233000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068657622.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1021233000121 its reverse (1210003321201), we get a palindrome (2231236321322).

The spelling of 1021233000121 in words is "one trillion, twenty-one billion, two hundred thirty-three million, one hundred twenty-one", and thus it is an aban number.