21334343414121 has 6 divisors (see below), whose sum is σ = 30816273820410. Its totient is φ = 14222895609408.

The previous prime is 21334343414119. The next prime is 21334343414141. The reversal of 21334343414121 is 12141434343312.

21334343414121 is a `hidden beast` number, since 2 + 1 + 33 + 434 + 34 + 141 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20037395979225 + 1296947434896 = 4476315^2 + 1138836^2 .

It is not a de Polignac number, because 21334343414121 - 2¹ = 21334343414119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21334343414141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1185241300776 + ... + 1185241300793.

It is an arithmetic number, because the mean of its divisors is an integer number (5136045636735).

Almost surely, 2^{21334343414121} is an apocalyptic number.

It is an amenable number.

21334343414121 is a deficient number, since it is larger than the sum of its proper divisors (9481930406289).

21334343414121 is a wasteful number, since it uses less digits than its factorization.

21334343414121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370482601575 (or 2370482601572 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

Adding to 21334343414121 its reverse (12141434343312), we get a palindrome (33475777757433).

The spelling of 21334343414121 in words is "twenty-one trillion, three hundred thirty-four billion, three hundred forty-three million, four hundred fourteen thousand, one hundred twenty-one".