21454521330110 has 16 divisors (see below), whose sum is σ = 42128878248432. Its totient is φ = 7801644120000.

The previous prime is 21454521330107. The next prime is 21454521330163. The reversal of 21454521330110 is 1103312545412.

It is a super-2 number, since 2×21454521330110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97520551391 + ... + 97520551610.

It is an arithmetic number, because the mean of its divisors is an integer number (2633054890527).

Almost surely, 2^{21454521330110} is an apocalyptic number.

21454521330110 is a deficient number, since it is larger than the sum of its proper divisors (20674356918322).

21454521330110 is a wasteful number, since it uses less digits than its factorization.

21454521330110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195041103019.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 21454521330110 its reverse (1103312545412), we get a palindrome (22557833875522).

The spelling of 21454521330110 in words is "twenty-one trillion, four hundred fifty-four billion, five hundred twenty-one million, three hundred thirty thousand, one hundred ten".