22021242340432 has 40 divisors (see below), whose sum is σ = 45500937753600. Its totient is φ = 10288384046592.

The previous prime is 22021242340393. The next prime is 22021242340439. The reversal of 22021242340432 is 23404324212022.

It is a happy number.

It is a super-2 number, since 2×22021242340432² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22021242340394 and 22021242340403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021242340439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291186832 + ... + 291262447.

It is an arithmetic number, because the mean of its divisors is an integer number (1137523443840).

Almost surely, 2^{22021242340432} is an apocalyptic number.

It is an amenable number.

22021242340432 is an abundant number, since it is smaller than the sum of its proper divisors (23479695413168).

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

22021242340432 is a wasteful number, since it uses less digits than its factorization.

22021242340432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582449443 (or 582449437 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 22021242340432 its reverse (23404324212022), we get a palindrome (45425566552454).

The spelling of 22021242340432 in words is "twenty-two trillion, twenty-one billion, two hundred forty-two million, three hundred forty thousand, four hundred thirty-two".