20110222220 has 48 divisors (see below), whose sum is σ = 46142224128. Its totient is φ = 7301453760.

The previous prime is 20110222189. The next prime is 20110222229. The reversal of 20110222220 is 2222201102.

It is a junction number, because it is equal to n+sod(n) for n = 20110222195 and 20110222204.

It is not an unprimeable number, because it can be changed into a prime (20110222229) 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 15 ways as a sum of consecutive naturals, for example, 71699 + ... + 212981.

It is an arithmetic number, because the mean of its divisors is an integer number (961296336).

Almost surely, 2^20110222220 is an apocalyptic number.

20110222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110222220 is an abundant number, since it is smaller than the sum of its proper divisors (26032001908).

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

20110222220 is a wasteful number, since it uses less digits than its factorization.

20110222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141950 (or 141948 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20110222220 its reverse (2222201102), we get a palindrome (22332423322).

It can be divided in two parts, 201102 and 22220, that added together give a palindrome (223322).

The spelling of 20110222220 in words is "twenty billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty".