2221022012 has 24 divisors (see below), whose sum is σ = 4268602800. Its totient is φ = 1002776960.

The previous prime is 2221022003. The next prime is 2221022057. The reversal of 2221022012 is 2102201222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162833 + ... + 175944.

It is an arithmetic number, because the mean of its divisors is an integer number (177858450).

Almost surely, 2^2221022012 is an apocalyptic number.

2221022012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221022012 is a deficient number, since it is larger than the sum of its proper divisors (2047580788).

2221022012 is a wasteful number, since it uses less digits than its factorization.

2221022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338941 (or 338939 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2221022012 is about 47127.7202079625. The cubic root of 2221022012 is about 1304.7209048735.

Adding to 2221022012 its reverse (2102201222), we get a palindrome (4323223234).

It can be divided in two parts, 22 and 21022012, that multiplied together give a palindrome (462484264).

The spelling of 2221022012 in words is "two billion, two hundred twenty-one million, twenty-two thousand, twelve".