210222111020 has 96 divisors (see below), whose sum is σ = 461970432000. Its totient is φ = 80260128000.

The previous prime is 210222111017. The next prime is 210222111023. The reversal of 210222111020 is 20111222012.

210222111020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (210222111017) and next prime (210222111023).

It is a junction number, because it is equal to n+sod(n) for n = 210222110986 and 210222111004.

It is not an unprimeable number, because it can be changed into a prime (210222111023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63721331 + ... + 63724629.

It is an arithmetic number, because the mean of its divisors is an integer number (4812192000).

Almost surely, 2^210222111020 is an apocalyptic number.

210222111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210222111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230985216000).

210222111020 is an abundant number, since it is smaller than the sum of its proper divisors (251748320980).

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

210222111020 is a wasteful number, since it uses less digits than its factorization.

210222111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719 (or 4717 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210222111020 its reverse (20111222012), we get a palindrome (230333333032).

The spelling of 210222111020 in words is "two hundred ten billion, two hundred twenty-two million, one hundred eleven thousand, twenty".