2021222102201 has 16 divisors (see below), whose sum is σ = 2109264230400. Its totient is φ = 1934430398208.

The previous prime is 2021222102197. The next prime is 2021222102233. The reversal of 2021222102201 is 1022012221202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2021222102201 - 2² = 2021222102197 is a prime.

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 2021222102201.

It is not an unprimeable number, because it can be changed into a prime (2021222102261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3891665 + ... + 4380353.

It is an arithmetic number, because the mean of its divisors is an integer number (131829014400).

Almost surely, 2^{2021222102201} is an apocalyptic number.

It is an amenable number.

2021222102201 is a deficient number, since it is larger than the sum of its proper divisors (88042128199).

2021222102201 is a wasteful number, since it uses less digits than its factorization.

2021222102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489968.

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

Adding to 2021222102201 its reverse (1022012221202), we get a palindrome (3043234323403).

The spelling of 2021222102201 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred two thousand, two hundred one".