2211023210221 has 8 divisors (see below), whose sum is σ = 2537456405760. Its totient is φ = 1887233198928.

The previous prime is 2211023210197. The next prime is 2211023210243. The reversal of 2211023210221 is 1220123201122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2211023210221 - 2¹³ = 2211023202029 is a prime.

It is a super-2 number, since 2×2211023210221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211023210251) 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, 660794266 + ... + 660797611.

It is an arithmetic number, because the mean of its divisors is an integer number (317182050720).

Almost surely, 2^{2211023210221} is an apocalyptic number.

It is an amenable number.

2211023210221 is a deficient number, since it is larger than the sum of its proper divisors (326433195539).

2211023210221 is a wasteful number, since it uses less digits than its factorization.

2211023210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321592123.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2211023210221 its reverse (1220123201122), we get a palindrome (3431146411343).

Subtracting from 2211023210221 its reverse (1220123201122), we obtain a palindrome (990900009099).

The spelling of 2211023210221 in words is "two trillion, two hundred eleven billion, twenty-three million, two hundred ten thousand, two hundred twenty-one".