2212222210100 has 288 divisors, whose sum is σ = 5936312551680. Its totient is φ = 698734632960.

The previous prime is 2212222210091. The next prime is 2212222210129. The reversal of 2212222210100 is 10122222122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 79639814 + ... + 79667586.

It is an arithmetic number, because the mean of its divisors is an integer number (20612196360).

Almost surely, 2^{2212222210100} is an apocalyptic number.

2212222210100 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 2212222210100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2968156275840).

2212222210100 is an abundant number, since it is smaller than the sum of its proper divisors (3724090341580).

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

2212222210100 is a wasteful number, since it uses less digits than its factorization.

2212222210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27979 (or 27972 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2212222210100 its reverse (10122222122), we get a palindrome (2222344432222).

The spelling of 2212222210100 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred ten thousand, one hundred".