2421222143340 has 384 divisors, whose sum is σ = 9142241310720. Its totient is φ = 462379622400.

The previous prime is 2421222143321. The next prime is 2421222143411. The reversal of 2421222143340 is 433412221242.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2421222143298 and 2421222143307.

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 127 ways as a sum of consecutive naturals, for example, 13665720 + ... + 13841760.

It is an arithmetic number, because the mean of its divisors is an integer number (23807920080).

Almost surely, 2^{2421222143340} is an apocalyptic number.

2421222143340 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 2421222143340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4571120655360).

2421222143340 is an abundant number, since it is smaller than the sum of its proper divisors (6721019167380).

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

2421222143340 is a wasteful number, since it uses less digits than its factorization.

2421222143340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176313 (or 176311 counting only the distinct ones).

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

Adding to 2421222143340 its reverse (433412221242), we get a palindrome (2854634364582).

The spelling of 2421222143340 in words is "two trillion, four hundred twenty-one billion, two hundred twenty-two million, one hundred forty-three thousand, three hundred forty".