1200120022 has 16 divisors (see below), whose sum is σ = 1841162400. Its totient is φ = 586485952.

The previous prime is 1200120017. The next prime is 1200120037. The reversal of 1200120022 is 2200210021.

It is a junction number, because it is equal to n+sod(n) for n = 1200119990 and 1200120008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6354 + ... + 49402.

It is an arithmetic number, because the mean of its divisors is an integer number (115072650).

Almost surely, 2^1200120022 is an apocalyptic number.

1200120022 is a deficient number, since it is larger than the sum of its proper divisors (641042378).

1200120022 is a wasteful number, since it uses less digits than its factorization.

1200120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43367.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1200120022 is about 34642.7484764128. The cubic root of 1200120022 is about 1062.6939964478.

Adding to 1200120022 its reverse (2200210021), we get a palindrome (3400330043).

It can be divided in two parts, 12001 and 20022, that added together give a palindrome (32023).

The spelling of 1200120022 in words is "one billion, two hundred million, one hundred twenty thousand, twenty-two".