20122202110021 has 8 divisors (see below), whose sum is σ = 21962452542624. Its totient is φ = 18283778232720.

The previous prime is 20122202110019. The next prime is 20122202110123. The reversal of 20122202110021 is 12001120222102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20122202110021 - 2¹ = 20122202110019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20122202109977 and 20122202110004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122202110721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456615786 + ... + 456659851.

It is an arithmetic number, because the mean of its divisors is an integer number (2745306567828).

Almost surely, 2^{20122202110021} is an apocalyptic number.

It is an amenable number.

20122202110021 is a deficient number, since it is larger than the sum of its proper divisors (1840250432603).

20122202110021 is a wasteful number, since it uses less digits than its factorization.

20122202110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913277651.

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

Adding to 20122202110021 its reverse (12001120222102), we get a palindrome (32123322332123).

The spelling of 20122202110021 in words is "twenty trillion, one hundred twenty-two billion, two hundred two million, one hundred ten thousand, twenty-one".