2221022228 has 12 divisors (see below), whose sum is σ = 3917394432. Its totient is φ = 1101766680.

The previous prime is 2221022227. The next prime is 2221022231. The reversal of 2221022228 is 8222201222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221022227) 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, 2185538 + ... + 2186553.

It is an arithmetic number, because the mean of its divisors is an integer number (326449536).

Almost surely, 2^2221022228 is an apocalyptic number.

It is an amenable number.

2221022228 is a deficient number, since it is larger than the sum of its proper divisors (1696372204).

2221022228 is a wasteful number, since it uses less digits than its factorization.

2221022228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372222 (or 4372220 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2221022228 is about 47127.7224996074. The cubic root of 2221022228 is about 1304.7209471693.

The spelling of 2221022228 in words is "two billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty-eight".