2212020221 has 16 divisors (see below), whose sum is σ = 2306423808. Its totient is φ = 2119152000.

The previous prime is 2212020199. The next prime is 2212020241. The reversal of 2212020221 is 1220202122.

It is a cyclic number.

It is not a de Polignac number, because 2212020221 - 2⁶ = 2212020157 is a prime.

It is a super-2 number, since 2×2212020221² = 9786066916225777682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2212020196 and 2212020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212020241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2976776 + ... + 2977518.

It is an arithmetic number, because the mean of its divisors is an integer number (144151488).

Almost surely, 2^2212020221 is an apocalyptic number.

It is an amenable number.

2212020221 is a deficient number, since it is larger than the sum of its proper divisors (94403587).

2212020221 is a wasteful number, since it uses less digits than its factorization.

2212020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

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

The square root of 2212020221 is about 47032.1190358249. The cubic root of 2212020221 is about 1302.9558423784.

Adding to 2212020221 its reverse (1220202122), we get a palindrome (3432222343).

The spelling of 2212020221 in words is "two billion, two hundred twelve million, twenty thousand, two hundred twenty-one".