1002101212121 has 8 divisors (see below), whose sum is σ = 1055363818080. Its totient is φ = 948890649888.

The previous prime is 1002101212097. The next prime is 1002101212157. The reversal of 1002101212121 is 1212121012001.

1002101212121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-1002101212121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002101212096 and 1002101212105.

It is not an unprimeable number, because it can be changed into a prime (1002101212171) 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, 12971396 + ... + 13048421.

It is an arithmetic number, because the mean of its divisors is an integer number (131920477260).

Almost surely, 2^{1002101212121} is an apocalyptic number.

It is an amenable number.

1002101212121 is a deficient number, since it is larger than the sum of its proper divisors (53262605959).

1002101212121 is a wasteful number, since it uses less digits than its factorization.

1002101212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26021863.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1002101212121 its reverse (1212121012001), we get a palindrome (2214222224122).

The spelling of 1002101212121 in words is "one trillion, two billion, one hundred one million, two hundred twelve thousand, one hundred twenty-one".