20221012010221 has 16 divisors (see below), whose sum is σ = 23037084499968. Its totient is φ = 17569204527600.

The previous prime is 20221012010207. The next prime is 20221012010239. The reversal of 20221012010221 is 12201021012202.

It is a happy number.

It is not a de Polignac number, because 20221012010221 - 2¹⁹ = 20221011485933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221012010195 and 20221012010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221012010281) 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, 32151981 + ... + 32774866.

It is an arithmetic number, because the mean of its divisors is an integer number (1439817781248).

Almost surely, 2^{20221012010221} is an apocalyptic number.

It is an amenable number.

20221012010221 is a deficient number, since it is larger than the sum of its proper divisors (2816072489747).

20221012010221 is a wasteful number, since it uses less digits than its factorization.

20221012010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64928112.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20221012010221 its reverse (12201021012202), we get a palindrome (32422033022423).

The spelling of 20221012010221 in words is "twenty trillion, two hundred twenty-one billion, twelve million, ten thousand, two hundred twenty-one".