20021222110 has 8 divisors (see below), whose sum is σ = 36038199816. Its totient is φ = 8008488840.

The previous prime is 20021222083. The next prime is 20021222119. The reversal of 20021222110 is 1122212002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021222119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001061096 + ... + 1001061115.

It is an arithmetic number, because the mean of its divisors is an integer number (4504774977).

Almost surely, 2^20021222110 is an apocalyptic number.

20021222110 is a deficient number, since it is larger than the sum of its proper divisors (16016977706).

20021222110 is a wasteful number, since it uses less digits than its factorization.

20021222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002122218.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20021222110 its reverse (1122212002), we get a palindrome (21143434112).

The spelling of 20021222110 in words is "twenty billion, twenty-one million, two hundred twenty-two thousand, one hundred ten".