2220201022221 has 192 divisors, whose sum is σ = 4256116580352. Its totient is φ = 1083160843776.

The previous prime is 2220201022219. The next prime is 2220201022223. The reversal of 2220201022221 is 1222201020222.

2220201022221 is a `hidden beast` number, since 2 + 220 + 201 + 0 + 22 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (2220201022219) and next prime (2220201022223).

It is not a de Polignac number, because 2220201022221 - 2¹ = 2220201022219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220201022194 and 2220201022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220201022223) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 113596176 + ... + 113615718.

It is an arithmetic number, because the mean of its divisors is an integer number (22167273856).

Almost surely, 2^{2220201022221} is an apocalyptic number.

2220201022221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2220201022221 is a deficient number, since it is larger than the sum of its proper divisors (2035915558131).

2220201022221 is a wasteful number, since it uses less digits than its factorization.

2220201022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19792 (or 19789 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2220201022221 its reverse (1222201020222), we get a palindrome (3442402042443).

The spelling of 2220201022221 in words is "two trillion, two hundred twenty billion, two hundred one million, twenty-two thousand, two hundred twenty-one".