1200310122222 has 96 divisors (see below), whose sum is σ = 2733244250880. Its totient is φ = 380222138880.

The previous prime is 1200310122169. The next prime is 1200310122257. The reversal of 1200310122222 is 2222210130021.

1200310122222 is a `hidden beast` number, since 12 + 0 + 0 + 310 + 122 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1200310122195 and 1200310122204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9263748 + ... + 9392424.

It is an arithmetic number, because the mean of its divisors is an integer number (28471294280).

Almost surely, 2^{1200310122222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200310122222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366622125440).

1200310122222 is an abundant number, since it is smaller than the sum of its proper divisors (1532934128658).

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

1200310122222 is a wasteful number, since it uses less digits than its factorization.

1200310122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129018 (or 129015 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1200310122222 its reverse (2222210130021), we get a palindrome (3422520252243).

The spelling of 1200310122222 in words is "one trillion, two hundred billion, three hundred ten million, one hundred twenty-two thousand, two hundred twenty-two".