2021222202101 has 8 divisors (see below), whose sum is σ = 2140130107584. Its totient is φ = 1902315683520.

The previous prime is 2021222202079. The next prime is 2021222202127. The reversal of 2021222202101 is 1012022221202.

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 2021222202101 - 2²² = 2021218007797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021222202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021222202401) 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, 5085686 + ... + 5468696.

It is an arithmetic number, because the mean of its divisors is an integer number (267516263448).

Almost surely, 2^{2021222202101} is an apocalyptic number.

It is an amenable number.

2021222202101 is a deficient number, since it is larger than the sum of its proper divisors (118907905483).

2021222202101 is a wasteful number, since it uses less digits than its factorization.

2021222202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693451.

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

Adding to 2021222202101 its reverse (1012022221202), we get a palindrome (3033244423303).

The spelling of 2021222202101 in words is "two trillion, twenty-one billion, two hundred twenty-two million, two hundred two thousand, one hundred one".