1201222122 has 8 divisors (see below), whose sum is σ = 2402444256. Its totient is φ = 400407372.

The previous prime is 1201222117. The next prime is 1201222129. The reversal of 1201222122 is 2212221021.

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

1201222122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1201222129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100101838 + ... + 100101849.

It is an arithmetic number, because the mean of its divisors is an integer number (300305532).

Almost surely, 2^1201222122 is an apocalyptic number.

1201222122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1201222122 is a wasteful number, since it uses less digits than its factorization.

1201222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200203692.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1201222122 is about 34658.6514740548. The cubic root of 1201222122 is about 1063.0191963452.

Adding to 1201222122 its reverse (2212221021), we get a palindrome (3413443143).

The spelling of 1201222122 in words is "one billion, two hundred one million, two hundred twenty-two thousand, one hundred twenty-two".