2122221211110 has 1152 divisors, whose sum is σ = 8086278380544. Its totient is φ = 372591083520.

The previous prime is 2122221211087. The next prime is 2122221211111. The reversal of 2122221211110 is 111121222212.

2122221211110 is a `hidden beast` number, since 2 + 122 + 221 + 211 + 110 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122221211111) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 963331269 + ... + 963333471.

It is an arithmetic number, because the mean of its divisors is an integer number (7019338872).

Almost surely, 2^{2122221211110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122221211110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4043139190272).

2122221211110 is an abundant number, since it is smaller than the sum of its proper divisors (5964057169434).

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

2122221211110 is a wasteful number, since it uses less digits than its factorization.

2122221211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2298 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2122221211110 its reverse (111121222212), we get a palindrome (2233342433322).

The spelling of 2122221211110 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred eleven thousand, one hundred ten".