21441333233442 has 32 divisors (see below), whose sum is σ = 43597747315584. Its totient is φ = 7027995916800.

The previous prime is 21441333233429. The next prime is 21441333233473. The reversal of 21441333233442 is 24433233314412.

It is a self number, because there is not a number n which added to its sum of digits gives 21441333233442.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6800559 + ... + 9440882.

It is an arithmetic number, because the mean of its divisors is an integer number (1362429603612).

Almost surely, 2^{21441333233442} is an apocalyptic number.

21441333233442 is an abundant number, since it is smaller than the sum of its proper divisors (22156414082142).

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

21441333233442 is a wasteful number, since it uses less digits than its factorization.

21441333233442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16245114.

The product of its digits is 497664, while the sum is 39.

Adding to 21441333233442 its reverse (24433233314412), we get a palindrome (45874566547854).

The spelling of 21441333233442 in words is "twenty-one trillion, four hundred forty-one billion, three hundred thirty-three million, two hundred thirty-three thousand, four hundred forty-two".