1200022122 has 32 divisors (see below), whose sum is σ = 2628480960. Its totient is φ = 362977920.

The previous prime is 1200022099. The next prime is 1200022177. The reversal of 1200022122 is 2212200021.

It is a junction number, because it is equal to n+sod(n) for n = 1200022098 and 1200022107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125779 + ... + 134982.

It is an arithmetic number, because the mean of its divisors is an integer number (82140030).

Almost surely, 2^1200022122 is an apocalyptic number.

1200022122 is an abundant number, since it is smaller than the sum of its proper divisors (1428458838).

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

1200022122 is a wasteful number, since it uses less digits than its factorization.

1200022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260838.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1200022122 is about 34641.3354534723. The cubic root of 1200022122 is about 1062.6650991794.

Adding to 1200022122 its reverse (2212200021), we get a palindrome (3412222143).

The spelling of 1200022122 in words is "one billion, two hundred million, twenty-two thousand, one hundred twenty-two".