2002121033121 has 24 divisors (see below), whose sum is σ = 3155339113056. Its totient is φ = 1213221407040.

The previous prime is 2002121033117. The next prime is 2002121033131. The reversal of 2002121033121 is 1213301212002.

It is not a de Polignac number, because 2002121033121 - 2² = 2002121033117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002121033094 and 2002121033103.

It is not an unprimeable number, because it can be changed into a prime (2002121033111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 890980 + ... + 2190453.

It is an arithmetic number, because the mean of its divisors is an integer number (131472463044).

Almost surely, 2^{2002121033121} is an apocalyptic number.

It is an amenable number.

2002121033121 is a deficient number, since it is larger than the sum of its proper divisors (1153218079935).

2002121033121 is a wasteful number, since it uses less digits than its factorization.

2002121033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088013 (or 3088010 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2002121033121 its reverse (1213301212002), we get a palindrome (3215422245123).

The spelling of 2002121033121 in words is "two trillion, two billion, one hundred twenty-one million, thirty-three thousand, one hundred twenty-one".