1223210031010 has 24 divisors (see below), whose sum is σ = 2420136212508. Its totient is φ = 444803647200.

The previous prime is 1223210030981. The next prime is 1223210031019. The reversal of 1223210031010 is 101300123221.

It can be written as a sum of positive squares in 2 ways, for example, as 1177956403569 + 45253627441 = 1085337^2 + 212729^2 .

It is not an unprimeable number, because it can be changed into a prime (1223210031019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 505457481 + ... + 505459900.

Almost surely, 2^{1223210031010} is an apocalyptic number.

1223210031010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223210031010 is a deficient number, since it is larger than the sum of its proper divisors (1196926181498).

1223210031010 is a wasteful number, since it uses less digits than its factorization.

1223210031010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010917410 (or 1010917399 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1223210031010 its reverse (101300123221), we get a palindrome (1324510154231).

The spelling of 1223210031010 in words is "one trillion, two hundred twenty-three billion, two hundred ten million, thirty-one thousand, ten".