21532353255110 has 16 divisors (see below), whose sum is σ = 38855863664496. Its totient is φ = 8591246234208.

The previous prime is 21532353255067. The next prime is 21532353255209. The reversal of 21532353255110 is 1155235323512.

It is a super-2 number, since 2×21532353255110² (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, 2711879312 + ... + 2711887251.

It is an arithmetic number, because the mean of its divisors is an integer number (2428491479031).

Almost surely, 2^{21532353255110} is an apocalyptic number.

21532353255110 is a deficient number, since it is larger than the sum of its proper divisors (17323510409386).

21532353255110 is a wasteful number, since it uses less digits than its factorization.

21532353255110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423766967.

The product of its (nonzero) digits is 135000, while the sum is 38.

Adding to 21532353255110 its reverse (1155235323512), we get a palindrome (22687588578622).

The spelling of 21532353255110 in words is "twenty-one trillion, five hundred thirty-two billion, three hundred fifty-three million, two hundred fifty-five thousand, one hundred ten".