222201111121002 has 192 divisors, whose sum is σ = 554482432183680. Its totient is φ = 63739649046528.

The previous prime is 222201111120931. The next prime is 222201111121081. The reversal of 222201111121002 is 200121111102222.

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 95 ways as a sum of consecutive naturals, for example, 143006478 + ... + 144551910.

It is an arithmetic number, because the mean of its divisors is an integer number (2887929334290).

Almost surely, 2^{222201111121002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222201111121002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277241216091840).

222201111121002 is an abundant number, since it is smaller than the sum of its proper divisors (332281321062678).

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

222201111121002 is a wasteful number, since it uses less digits than its factorization.

222201111121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545989 (or 1545986 counting only the distinct ones).

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

Adding to 222201111121002 its reverse (200121111102222), we get a palindrome (422322222223224).

The spelling of 222201111121002 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred eleven million, one hundred twenty-one thousand, two".