20202230002121 has 16 divisors (see below), whose sum is σ = 21624569035776. Its totient is φ = 18806131931136.

The previous prime is 20202230002103. The next prime is 20202230002133. The reversal of 20202230002121 is 12120003220202.

It is a cyclic number.

It is not a de Polignac number, because 20202230002121 - 2³⁰ = 20201156260297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20202230002121.

It is not an unprimeable number, because it can be changed into a prime (20202230002151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161881 + ... + 6461766.

It is an arithmetic number, because the mean of its divisors is an integer number (1351535564736).

Almost surely, 2^{20202230002121} is an apocalyptic number.

It is an amenable number.

20202230002121 is a deficient number, since it is larger than the sum of its proper divisors (1422339033655).

20202230002121 is a wasteful number, since it uses less digits than its factorization.

20202230002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625368.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20202230002121 its reverse (12120003220202), we get a palindrome (32322233222323).

The spelling of 20202230002121 in words is "twenty trillion, two hundred two billion, two hundred thirty million, two thousand, one hundred twenty-one".