2223211120221 has 64 divisors (see below), whose sum is σ = 3759003795456. Its totient is φ = 1137318278400.

The previous prime is 2223211120217. The next prime is 2223211120237. The reversal of 2223211120221 is 1220211123222.

It is not a de Polignac number, because 2223211120221 - 2² = 2223211120217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223211120261) 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 63 ways as a sum of consecutive naturals, for example, 2787556 + ... + 3495266.

It is an arithmetic number, because the mean of its divisors is an integer number (58734434304).

Almost surely, 2^{2223211120221} is an apocalyptic number.

2223211120221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2223211120221 is a deficient number, since it is larger than the sum of its proper divisors (1535792675235).

2223211120221 is a wasteful number, since it uses less digits than its factorization.

2223211120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708082.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2223211120221 its reverse (1220211123222), we get a palindrome (3443422243443).

It can be divided in two parts, 2223211 and 120221, that added together give a palindrome (2343432).

The spelling of 2223211120221 in words is "two trillion, two hundred twenty-three billion, two hundred eleven million, one hundred twenty thousand, two hundred twenty-one".