1200222184122 has 128 divisors (see below), whose sum is σ = 3029577600000. Its totient is φ = 349159273920.

The previous prime is 1200222184079. The next prime is 1200222184127. The reversal of 1200222184122 is 2214812220021.

1200222184122 is a `hidden beast` number, since 1 + 20 + 0 + 2 + 221 + 8 + 412 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1200222184127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6565497 + ... + 6745827.

It is an arithmetic number, because the mean of its divisors is an integer number (23668575000).

Almost surely, 2^{1200222184122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200222184122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514788800000).

1200222184122 is an abundant number, since it is smaller than the sum of its proper divisors (1829355415878).

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

1200222184122 is a wasteful number, since it uses less digits than its factorization.

1200222184122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180873 (or 180867 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The spelling of 1200222184122 in words is "one trillion, two hundred billion, two hundred twenty-two million, one hundred eighty-four thousand, one hundred twenty-two".