2021222101001 has 8 divisors (see below), whose sum is σ = 2162480937600. Its totient is φ = 1883451137040.

The previous prime is 2021222100979. The next prime is 2021222101027. The reversal of 2021222101001 is 1001012221202.

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 2021222101001 - 2¹⁰ = 2021222099977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021222101201) 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, 871966961 + ... + 871969278.

It is an arithmetic number, because the mean of its divisors is an integer number (270310117200).

Almost surely, 2^{2021222101001} is an apocalyptic number.

It is an amenable number.

2021222101001 is a deficient number, since it is larger than the sum of its proper divisors (141258836599).

2021222101001 is a wasteful number, since it uses less digits than its factorization.

2021222101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743936319.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021222101001 its reverse (1001012221202), we get a palindrome (3022234322203).

The spelling of 2021222101001 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred one thousand, one".