102002022121 has 8 divisors (see below), whose sum is σ = 107031516480. Its totient is φ = 97022079792.

The previous prime is 102002022097. The next prime is 102002022137. The reversal of 102002022121 is 121220200201.

It is a happy number.

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 102002022121 - 2⁹ = 102002021609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102002022721) 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, 12383790 + ... + 12392023.

It is an arithmetic number, because the mean of its divisors is an integer number (13378939560).

Almost surely, 2^102002022121 is an apocalyptic number.

It is an amenable number.

102002022121 is a deficient number, since it is larger than the sum of its proper divisors (5029494359).

102002022121 is a wasteful number, since it uses less digits than its factorization.

102002022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24776015.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102002022121 its reverse (121220200201), we get a palindrome (223222222322).

The spelling of 102002022121 in words is "one hundred two billion, two million, twenty-two thousand, one hundred twenty-one".