1230121022 has 16 divisors (see below), whose sum is σ = 1991663520. Its totient is φ = 566449632.

The previous prime is 1230121021. The next prime is 1230121097. The reversal of 1230121022 is 2201210321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1230120988 and 1230121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230121021) by changing a digit.

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, 42473 + ... + 65300.

It is an arithmetic number, because the mean of its divisors is an integer number (124478970).

Almost surely, 2^1230121022 is an apocalyptic number.

1230121022 is a deficient number, since it is larger than the sum of its proper divisors (761542498).

1230121022 is a wasteful number, since it uses less digits than its factorization.

1230121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108227.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1230121022 is about 35073.0811592024. The cubic root of 1230121022 is about 1071.4764089083.

Adding to 1230121022 its reverse (2201210321), we get a palindrome (3431331343).

The spelling of 1230121022 in words is "one billion, two hundred thirty million, one hundred twenty-one thousand, twenty-two".