210222221100 has 72 divisors (see below), whose sum is σ = 608296014480. Its totient is φ = 56054369280.

The previous prime is 210222221081. The next prime is 210222221107. The reversal of 210222221100 is 1122222012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210222221100.

It is not an unprimeable number, because it can be changed into a prime (210222221107) 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 23 ways as a sum of consecutive naturals, for example, 4563784 + ... + 4609616.

Almost surely, 2^210222221100 is an apocalyptic number.

210222221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210222221100 is an abundant number, since it is smaller than the sum of its proper divisors (398073793380).

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

210222221100 is a wasteful number, since it uses less digits than its factorization.

210222221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61139 (or 61132 counting only the distinct ones).

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

Adding to 210222221100 its reverse (1122222012), we get a palindrome (211344443112).

The spelling of 210222221100 in words is "two hundred ten billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred".