21222021023110 has 32 divisors (see below), whose sum is σ = 40449567093120. Its totient is φ = 7988895532032.

The previous prime is 21222021023101. The next prime is 21222021023117. The reversal of 21222021023110 is 1132012022212.

It is a super-2 number, since 2×21222021023110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222021023117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2074014 + ... + 6837073.

It is an arithmetic number, because the mean of its divisors is an integer number (1264048971660).

Almost surely, 2^{21222021023110} is an apocalyptic number.

21222021023110 is a deficient number, since it is larger than the sum of its proper divisors (19227546070010).

21222021023110 is a wasteful number, since it uses less digits than its factorization.

21222021023110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8925120.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21222021023110 its reverse (1132012022212), we get a palindrome (22354033045322).

The spelling of 21222021023110 in words is "twenty-one trillion, two hundred twenty-two billion, twenty-one million, twenty-three thousand, one hundred ten".