1201222023 has 16 divisors (see below), whose sum is σ = 1696762080. Its totient is φ = 753299456.

The previous prime is 1201221961. The next prime is 1201222027. The reversal of 1201222023 is 3202221021.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201222023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201221993 and 1201222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108823 + ... + 119351.

It is an arithmetic number, because the mean of its divisors is an integer number (106047630).

Almost surely, 2^1201222023 is an apocalyptic number.

1201222023 is a deficient number, since it is larger than the sum of its proper divisors (495540057).

1201222023 is a wasteful number, since it uses less digits than its factorization.

1201222023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12786.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1201222023 is about 34658.6500458399. The cubic root of 1201222023 is about 1063.0191671419.

Adding to 1201222023 its reverse (3202221021), we get a palindrome (4403443044).

The spelling of 1201222023 in words is "one billion, two hundred one million, two hundred twenty-two thousand, twenty-three".