21220110111332 has 24 divisors (see below), whose sum is σ = 41499195387552. Its totient is φ = 9410248385600.

The previous prime is 21220110111331. The next prime is 21220110111367. The reversal of 21220110111332 is 23311101102212.

It is not an unprimeable number, because it can be changed into a prime (21220110111331) 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, 5881403438 + ... + 5881407045.

It is an arithmetic number, because the mean of its divisors is an integer number (1729133141148).

Almost surely, 2^{21220110111332} is an apocalyptic number.

21220110111332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21220110111332 is a deficient number, since it is larger than the sum of its proper divisors (20279085276220).

21220110111332 is a wasteful number, since it uses less digits than its factorization.

21220110111332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11762810539 (or 11762810537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21220110111332 its reverse (23311101102212), we get a palindrome (44531211213544).

The spelling of 21220110111332 in words is "twenty-one trillion, two hundred twenty billion, one hundred ten million, one hundred eleven thousand, three hundred thirty-two".