2201222321100 has 432 divisors, whose sum is σ = 7663302017280. Its totient is φ = 523976640000.

The previous prime is 2201222321059. The next prime is 2201222321113. The reversal of 2201222321100 is 11232221022.

2201222321100 is a `hidden beast` number, since 2 + 20 + 1 + 222 + 321 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 689820505 + ... + 689823695.

It is an arithmetic number, because the mean of its divisors is an integer number (17739125040).

Almost surely, 2^{2201222321100} is an apocalyptic number.

2201222321100 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 2201222321100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3831651008640).

2201222321100 is an abundant number, since it is smaller than the sum of its proper divisors (5462079696180).

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

2201222321100 is a wasteful number, since it uses less digits than its factorization.

2201222321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4452 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2201222321100 its reverse (11232221022), we get a palindrome (2212454542122).

The spelling of 2201222321100 in words is "two trillion, two hundred one billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred".