20010010102221 has 8 divisors (see below), whose sum is σ = 27840014055360. Its totient is φ = 12760006441952.

The previous prime is 20010010102193. The next prime is 20010010102261. The reversal of 20010010102221 is 12220101001002.

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 20010010102221 - 2¹⁰ = 20010010101197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20010010102197 and 20010010102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010010102261) 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, 145000073136 + ... + 145000073273.

It is an arithmetic number, because the mean of its divisors is an integer number (3480001756920).

Almost surely, 2^{20010010102221} is an apocalyptic number.

It is an amenable number.

20010010102221 is a deficient number, since it is larger than the sum of its proper divisors (7830003953139).

20010010102221 is a wasteful number, since it uses less digits than its factorization.

20010010102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290000146435.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20010010102221 its reverse (12220101001002), we get a palindrome (32230111103223).

The spelling of 20010010102221 in words is "twenty trillion, ten billion, ten million, one hundred two thousand, two hundred twenty-one".