1200222122 has 8 divisors (see below), whose sum is σ = 1963999872. Its totient is φ = 545555500.

The previous prime is 1200222113. The next prime is 1200222161. The reversal of 1200222122 is 2212220021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1200222097 and 1200222106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27277754 + ... + 27277797.

It is an arithmetic number, because the mean of its divisors is an integer number (245499984).

Almost surely, 2^1200222122 is an apocalyptic number.

1200222122 is a deficient number, since it is larger than the sum of its proper divisors (763777750).

1200222122 is a wasteful number, since it uses less digits than its factorization.

1200222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54555564.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1200222122 is about 34644.2220579421. Note that the first 3 decimals coincide. The cubic root of 1200222122 is about 1062.7241317616.

Adding to 1200222122 its reverse (2212220021), we get a palindrome (3412442143).

It can be divided in two parts, 1200 and 222122, that added together give a palindrome (223322).

The spelling of 1200222122 in words is "one billion, two hundred million, two hundred twenty-two thousand, one hundred twenty-two".