222111122211000 has 768 divisors, whose sum is σ = 851254122700800. Its totient is φ = 51758573184000.

The previous prime is 222111122210987. The next prime is 222111122211001. The reversal of 222111122211000 is 112221111222.

222111122211000 is a `hidden beast` number, since 2 + 221 + 111 + 222 + 110 + 0 + 0 = 666.

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

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111122211001) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 303663721 + ... + 304394279.

It is an arithmetic number, because the mean of its divisors is an integer number (1108403805600).

Almost surely, 2^{222111122211000} is an apocalyptic number.

222111122211000 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 222111122211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425627061350400).

222111122211000 is an abundant number, since it is smaller than the sum of its proper divisors (629143000489800).

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

222111122211000 is a wasteful number, since it uses less digits than its factorization.

222111122211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730717 (or 730700 counting only the distinct ones).

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

Adding to 222111122211000 its reverse (112221111222), we get a palindrome (222223343322222).

The spelling of 222111122211000 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred twenty-two million, two hundred eleven thousand".