21124011444042 has 32 divisors (see below), whose sum is σ = 46555960828608. Its totient is φ = 6348540110976.

The previous prime is 21124011444037. The next prime is 21124011444073. The reversal of 21124011444042 is 24044411042112.

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, 3149074083 + ... + 3149080790.

It is an arithmetic number, because the mean of its divisors is an integer number (1454873775894).

Almost surely, 2^{21124011444042} is an apocalyptic number.

21124011444042 is an abundant number, since it is smaller than the sum of its proper divisors (25431949384566).

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

21124011444042 is a wasteful number, since it uses less digits than its factorization.

21124011444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298154934.

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 21124011444042 its reverse (24044411042112), we get a palindrome (45168422486154).

The spelling of 21124011444042 in words is "twenty-one trillion, one hundred twenty-four billion, eleven million, four hundred forty-four thousand, forty-two".