22221212243043 has 32 divisors (see below), whose sum is σ = 33763053123072. Its totient is φ = 12868113772800.

The previous prime is 22221212242979. The next prime is 22221212243081. The reversal of 22221212243043 is 34034221212222.

It is not a de Polignac number, because 22221212243043 - 2⁶ = 22221212242979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22221212243043.

It is not an unprimeable number, because it can be changed into a prime (22221212243543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14911528 + ... + 16333893.

It is an arithmetic number, because the mean of its divisors is an integer number (1055095410096).

Almost surely, 2^{22221212243043} is an apocalyptic number.

22221212243043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22221212243043 is a deficient number, since it is larger than the sum of its proper divisors (11541840880029).

22221212243043 is a wasteful number, since it uses less digits than its factorization.

22221212243043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31246395.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 22221212243043 its reverse (34034221212222), we get a palindrome (56255433455265).

The spelling of 22221212243043 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred forty-three thousand, forty-three".