2201000022221 has 32 divisors (see below), whose sum is σ = 2955352608768. Its totient is φ = 1583049147840.

The previous prime is 2201000022209. The next prime is 2201000022233. The reversal of 2201000022221 is 1222200001022.

It is an interprime number because it is at equal distance from previous prime (2201000022209) and next prime (2201000022233).

It is a cyclic number.

It is not a de Polignac number, because 2201000022221 - 2¹⁰ = 2201000021197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201000022196 and 2201000022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201000022251) 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 31 ways as a sum of consecutive naturals, for example, 21999116 + ... + 22098938.

It is an arithmetic number, because the mean of its divisors is an integer number (92354769024).

Almost surely, 2^{2201000022221} is an apocalyptic number.

It is an amenable number.

2201000022221 is a deficient number, since it is larger than the sum of its proper divisors (754352586547).

2201000022221 is a wasteful number, since it uses less digits than its factorization.

2201000022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121881.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2201000022221 its reverse (1222200001022), we get a palindrome (3423200023243).

The spelling of 2201000022221 in words is "two trillion, two hundred one billion, twenty-two thousand, two hundred twenty-one".