2221022212 has 6 divisors (see below), whose sum is σ = 3886788878. Its totient is φ = 1110511104.

The previous prime is 2221022201. The next prime is 2221022227. The reversal of 2221022212 is 2122201222.

It can be written as a sum of positive squares in only one way, i.e., 1877142276 + 343879936 = 43326^2 + 18544^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277627773 + ... + 277627780.

Almost surely, 2^2221022212 is an apocalyptic number.

It is an amenable number.

2221022212 is a deficient number, since it is larger than the sum of its proper divisors (1665766666).

2221022212 is a wasteful number, since it uses less digits than its factorization.

2221022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555255557 (or 555255555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2221022212 is about 47127.7223298559. The cubic root of 2221022212 is about 1304.7209440362.

Adding to 2221022212 its reverse (2122201222), we get a palindrome (4343223434).

The spelling of 2221022212 in words is "two billion, two hundred twenty-one million, twenty-two thousand, two hundred twelve".