2221022222012 has 12 divisors (see below), whose sum is σ = 4240133333016. Its totient is φ = 1009555555440.

The previous prime is 2221022221967. The next prime is 2221022222039. The reversal of 2221022222012 is 2102222201222.

It is a super-2 number, since 2×2221022222012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25238888843 + ... + 25238888930.

It is an arithmetic number, because the mean of its divisors is an integer number (353344444418).

Almost surely, 2^{2221022222012} is an apocalyptic number.

2221022222012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221022222012 is a deficient number, since it is larger than the sum of its proper divisors (2019111111004).

2221022222012 is a wasteful number, since it uses less digits than its factorization.

2221022222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50477777788 (or 50477777786 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2221022222012 its reverse (2102222201222), we get a palindrome (4323244423234).

It can be divided in two parts, 22210 and 22222012, that added together give a palindrome (22244222).

The spelling of 2221022222012 in words is "two trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty-two thousand, twelve".