20021110224 has 40 divisors (see below), whose sum is σ = 51756544512. Its totient is φ = 6669143040.

The previous prime is 20021110223. The next prime is 20021110349. The reversal of 20021110224 is 42201112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021110223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71169 + ... + 212384.

Almost surely, 2^20021110224 is an apocalyptic number.

20021110224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20021110224 is an abundant number, since it is smaller than the sum of its proper divisors (31735434288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021110224 is a wasteful number, since it uses less digits than its factorization.

20021110224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285035 (or 285029 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20021110224 its reverse (42201112002), we get a palindrome (62222222226).

The spelling of 20021110224 in words is "twenty billion, twenty-one million, one hundred ten thousand, two hundred twenty-four".