21134404211110 has 16 divisors (see below), whose sum is σ = 38161933666416. Its totient is φ = 8427093665248.

The previous prime is 21134404211083. The next prime is 21134404211119. The reversal of 21134404211110 is 1111240443112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21134404211119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3333499072 + ... + 3333505411.

It is an arithmetic number, because the mean of its divisors is an integer number (2385120854151).

Almost surely, 2^{21134404211110} is an apocalyptic number.

21134404211110 is a deficient number, since it is larger than the sum of its proper divisors (17027529455306).

21134404211110 is a wasteful number, since it uses less digits than its factorization.

21134404211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667004807.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 21134404211110 its reverse (1111240443112), we get a palindrome (22245644654222).

The spelling of 21134404211110 in words is "twenty-one trillion, one hundred thirty-four billion, four hundred four million, two hundred eleven thousand, one hundred ten".