20120002202221 has 8 divisors (see below), whose sum is σ = 20363953367520. Its totient is φ = 19876087739472.

The previous prime is 20120002202149. The next prime is 20120002202243. The reversal of 20120002202221 is 12220220002102.

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 20120002202221 - 2²⁹ = 20119465331309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20120002202195 and 20120002202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120002202921) 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, 8071810 + ... + 10266163.

It is an arithmetic number, because the mean of its divisors is an integer number (2545494170940).

Almost surely, 2^{20120002202221} is an apocalyptic number.

It is an amenable number.

20120002202221 is a deficient number, since it is larger than the sum of its proper divisors (243951165299).

20120002202221 is a wasteful number, since it uses less digits than its factorization.

20120002202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18351275.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20120002202221 its reverse (12220220002102), we get a palindrome (32340222204323).

The spelling of 20120002202221 in words is "twenty trillion, one hundred twenty billion, two million, two hundred two thousand, two hundred twenty-one".