20222202101021 has 8 divisors (see below), whose sum is σ = 20446596574200. Its totient is φ = 19998604767232.

The previous prime is 20222202100963. The next prime is 20222202101029. The reversal of 20222202101021 is 12010120222202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 497855836921 + 19724346264100 = 705589^2 + 4441210^2 .

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 20222202101021 - 2¹⁸ = 20222201838877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222202101029) 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, 199233830 + ... + 199335303.

It is an arithmetic number, because the mean of its divisors is an integer number (2555824571775).

Almost surely, 2^{20222202101021} is an apocalyptic number.

It is an amenable number.

20222202101021 is a deficient number, since it is larger than the sum of its proper divisors (224394473179).

20222202101021 is a wasteful number, since it uses less digits than its factorization.

20222202101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398569695.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20222202101021 its reverse (12010120222202), we get a palindrome (32232322323223).

The spelling of 20222202101021 in words is "twenty trillion, two hundred twenty-two billion, two hundred two million, one hundred one thousand, twenty-one".