1200010323222 has 80 divisors (see below), whose sum is σ = 2787350211360. Its totient is φ = 385416444672.

The previous prime is 1200010323221. The next prime is 1200010323269. The reversal of 1200010323222 is 2223230100021.

1200010323222 is a `hidden beast` number, since 120 + 0 + 0 + 1 + 0 + 323 + 222 = 666.

It is a super-2 number, since 2×1200010323222² (a number of 25 digits) contains 22 as substring.

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 = 1200010323195 and 1200010323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200010323221) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2025678 + ... + 2550174.

It is an arithmetic number, because the mean of its divisors is an integer number (34841877642).

Almost surely, 2^{1200010323222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200010323222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1393675105680).

1200010323222 is an abundant number, since it is smaller than the sum of its proper divisors (1587339888138).

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

1200010323222 is a wasteful number, since it uses less digits than its factorization.

1200010323222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525027 (or 525018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1200010323222 its reverse (2223230100021), we get a palindrome (3423240423243).

The spelling of 1200010323222 in words is "one trillion, two hundred billion, ten million, three hundred twenty-three thousand, two hundred twenty-two".