2221221102 has 8 divisors (see below), whose sum is σ = 4442442216. Its totient is φ = 740407032.

The previous prime is 2221221091. The next prime is 2221221103. The reversal of 2221221102 is 2011221222.

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

2221221102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221221103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185101753 + ... + 185101764.

It is an arithmetic number, because the mean of its divisors is an integer number (555305277).

Almost surely, 2^2221221102 is an apocalyptic number.

2221221102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221221102 is a wasteful number, since it uses less digits than its factorization.

2221221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370203522.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2221221102 is about 47129.8323994474. The cubic root of 2221221102 is about 1304.7598882968.

Adding to 2221221102 its reverse (2011221222), we get a palindrome (4232442324).

The spelling of 2221221102 in words is "two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred two".