2220022212221 has 8 divisors (see below), whose sum is σ = 2421853661088. Its totient is φ = 2018192638000.

The previous prime is 2220022212179. The next prime is 2220022212223. The reversal of 2220022212221 is 1222122200222.

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

It is a de Polignac number, because none of the positive numbers 2^k-2220022212221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220022212193 and 2220022212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220022212223) 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, 3385811 + ... + 3987951.

It is an arithmetic number, because the mean of its divisors is an integer number (302731707636).

Almost surely, 2^{2220022212221} is an apocalyptic number.

It is an amenable number.

2220022212221 is a deficient number, since it is larger than the sum of its proper divisors (201831448867).

2220022212221 is a wasteful number, since it uses less digits than its factorization.

2220022212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937323.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2220022212221 its reverse (1222122200222), we get a palindrome (3442144412443).

The spelling of 2220022212221 in words is "two trillion, two hundred twenty billion, twenty-two million, two hundred twelve thousand, two hundred twenty-one".