1200220122 has 16 divisors (see below), whose sum is σ = 2406712320. Its totient is φ = 399028032.

The previous prime is 1200220081. The next prime is 1200220157. The reversal of 1200220122 is 2210220021.

It is a junction number, because it is equal to n+sod(n) for n = 1200220098 and 1200220107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258847 + ... + 263442.

It is an arithmetic number, because the mean of its divisors is an integer number (150419520).

Almost surely, 2^1200220122 is an apocalyptic number.

1200220122 is an abundant number, since it is smaller than the sum of its proper divisors (1206492198).

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

1200220122 is a wasteful number, since it uses less digits than its factorization.

1200220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522677.

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

The square root of 1200220122 is about 34644.1931930879. The cubic root of 1200220122 is about 1062.7235414683.

Adding to 1200220122 its reverse (2210220021), we get a palindrome (3410440143).

The spelling of 1200220122 in words is "one billion, two hundred million, two hundred twenty thousand, one hundred twenty-two".