2221212010 has 32 divisors (see below), whose sum is σ = 4323456000. Its totient is φ = 818426112.

The previous prime is 2221211977. The next prime is 2221212011. The reversal of 2221212010 is 102121222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2221212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131010 + ... + 146989.

It is an arithmetic number, because the mean of its divisors is an integer number (135108000).

Almost surely, 2^2221212010 is an apocalyptic number.

2221212010 is a deficient number, since it is larger than the sum of its proper divisors (2102243990).

2221212010 is a wasteful number, since it uses less digits than its factorization.

2221212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278070.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221212010 is about 47129.7359423963. The cubic root of 2221212010 is about 1304.7581080608.

Adding to 2221212010 its reverse (102121222), we get a palindrome (2323333232).

The spelling of 2221212010 in words is "two billion, two hundred twenty-one million, two hundred twelve thousand, ten".