221122200010000 has 400 divisors, whose sum is σ = 546598630448640. Its totient is φ = 86612797440000.

The previous prime is 221122200009973. The next prime is 221122200010037. The reversal of 221122200010000 is 10002221122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 68735528392 + ... + 68735531608.

Almost surely, 2^{221122200010000} is an apocalyptic number.

221122200010000 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 221122200010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273299315224320).

221122200010000 is an abundant number, since it is smaller than the sum of its proper divisors (325476430438640).

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

221122200010000 is a wasteful number, since it uses less digits than its factorization.

221122200010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012 (or 3991 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221122200010000 its reverse (10002221122), we get a palindrome (221132202231122).

The spelling of 221122200010000 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two hundred million, ten thousand".