2021122220101 has 8 divisors (see below), whose sum is σ = 2105460262400. Its totient is φ = 1937980462320.

The previous prime is 2021122220071. The next prime is 2021122220113. The reversal of 2021122220101 is 1010222211202.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021122220101 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 (2021122220501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299067681 + ... + 299074438.

It is an arithmetic number, because the mean of its divisors is an integer number (263182532800).

Almost surely, 2^{2021122220101} is an apocalyptic number.

It is an amenable number.

2021122220101 is a deficient number, since it is larger than the sum of its proper divisors (84338042299).

2021122220101 is a wasteful number, since it uses less digits than its factorization.

2021122220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598142259.

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

Adding to 2021122220101 its reverse (1010222211202), we get a palindrome (3031344431303).

The spelling of 2021122220101 in words is "two trillion, twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, one hundred one".