22222002242420 has 48 divisors (see below), whose sum is σ = 49421963783808. Its totient is φ = 8375430814080.

The previous prime is 22222002242371. The next prime is 22222002242569. The reversal of 22222002242420 is 2424220022222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22222002242420.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 360481871 + ... + 360543510.

It is an arithmetic number, because the mean of its divisors is an integer number (1029624245496).

Almost surely, 2^{22222002242420} is an apocalyptic number.

22222002242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222002242420 is an abundant number, since it is smaller than the sum of its proper divisors (27199961541388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222002242420 is a wasteful number, since it uses less digits than its factorization.

22222002242420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721025480 (or 721025478 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 22222002242420 its reverse (2424220022222), we get a palindrome (24646222264642).

The spelling of 22222002242420 in words is "twenty-two trillion, two hundred twenty-two billion, two million, two hundred forty-two thousand, four hundred twenty".