222111221202000 has 800 divisors, whose sum is σ = 872551451195424. Its totient is φ = 54132157440000.

The previous prime is 222111221201999. The next prime is 222111221202041. The reversal of 222111221202000 is 202122111222.

It is a happy number.

222111221202000 is a `hidden beast` number, since 2 + 221 + 1 + 1 + 221 + 20 + 200 + 0 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 124476506865216 + 97634714336784 = 11156904^2 + 9881028^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 212183892 + ... + 213228108.

Almost surely, 2^{222111221202000} is an apocalyptic number.

222111221202000 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 222111221202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436275725597712).

222111221202000 is an abundant number, since it is smaller than the sum of its proper divisors (650440229993424).

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

222111221202000 is a wasteful number, since it uses less digits than its factorization.

222111221202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044366 (or 1044341 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222111221202000 its reverse (202122111222), we get a palindrome (222313343313222).

The spelling of 222111221202000 in words is "two hundred twenty-two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred two thousand".