1002121001121 has 8 divisors (see below), whose sum is σ = 1345914337824. Its totient is φ = 663204165920.

The previous prime is 1002121001053. The next prime is 1002121001129. The reversal of 1002121001121 is 1211001212001.

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 1002121001121 - 2¹⁵ = 1002120968353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002121001097 and 1002121001106.

It is not an unprimeable number, because it can be changed into a prime (1002121001129) 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, 1219124895 + ... + 1219125716.

It is an arithmetic number, because the mean of its divisors is an integer number (168239292228).

Almost surely, 2^{1002121001121} is an apocalyptic number.

It is an amenable number.

1002121001121 is a deficient number, since it is larger than the sum of its proper divisors (343793336703).

1002121001121 is a wasteful number, since it uses less digits than its factorization.

1002121001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438250751.

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

Adding to 1002121001121 its reverse (1211001212001), we get a palindrome (2213122213122).

The spelling of 1002121001121 in words is "one trillion, two billion, one hundred twenty-one million, one thousand, one hundred twenty-one".