22431202233220 has 384 divisors, whose sum is σ = 54705597004800. Its totient is φ = 7650585600000.

The previous prime is 22431202233179. The next prime is 22431202233221. The reversal of 22431202233220 is 2233220213422.

It is a super-2 number, since 2×22431202233220² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22431202233221) 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 127 ways as a sum of consecutive naturals, for example, 10476973350 + ... + 10476975490.

It is an arithmetic number, because the mean of its divisors is an integer number (142462492200).

Almost surely, 2^{22431202233220} is an apocalyptic number.

22431202233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22431202233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27352798502400).

22431202233220 is an abundant number, since it is smaller than the sum of its proper divisors (32274394771580).

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

22431202233220 is a wasteful number, since it uses less digits than its factorization.

22431202233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2589 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 22431202233220 its reverse (2233220213422), we get a palindrome (24664422446642).

The spelling of 22431202233220 in words is "twenty-two trillion, four hundred thirty-one billion, two hundred two million, two hundred thirty-three thousand, two hundred twenty".