1201255022 has 16 divisors (see below), whose sum is σ = 2029100544. Its totient is φ = 528411000.

The previous prime is 1201255021. The next prime is 1201255039. The reversal of 1201255022 is 2205521021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1201254985 and 1201255003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201255021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880004 + ... + 881367.

It is an arithmetic number, because the mean of its divisors is an integer number (126818784).

Almost surely, 2^1201255022 is an apocalyptic number.

1201255022 is a deficient number, since it is larger than the sum of its proper divisors (827845522).

1201255022 is a wasteful number, since it uses less digits than its factorization.

1201255022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761415.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1201255022 is about 34659.1260997735. The cubic root of 1201255022 is about 1063.0289011870.

Adding to 1201255022 its reverse (2205521021), we get a palindrome (3406776043).

The spelling of 1201255022 in words is "one billion, two hundred one million, two hundred fifty-five thousand, twenty-two".