222210000100 has 144 divisors (see below), whose sum is σ = 540879881472. Its totient is φ = 78537600000.

The previous prime is 222210000043. The next prime is 222210000149. The reversal of 222210000100 is 1000012222.

It is a super-5 number, since 5×222210000100⁵ (a number of 58 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12213010 + ... + 12231190.

It is an arithmetic number, because the mean of its divisors is an integer number (3756110288).

Almost surely, 2^222210000100 is an apocalyptic number.

222210000100 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 222210000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270439940736).

222210000100 is an abundant number, since it is smaller than the sum of its proper divisors (318669881372).

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

222210000100 is a wasteful number, since it uses less digits than its factorization.

222210000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18518 (or 18511 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 222210000100 its reverse (1000012222), we get a palindrome (223210012322).

It can be divided in two parts, 22 and 2210000100, that added together give a palindrome (2210000122).

The spelling of 222210000100 in words is "two hundred twenty-two billion, two hundred ten million, one hundred", and thus it is an aban number.