1233121231210 has 64 divisors (see below), whose sum is σ = 2425111363584. Its totient is φ = 447721344000.

The previous prime is 1233121231207. The next prime is 1233121231217. The reversal of 1233121231210 is 121321213321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1233121231217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344157079 + ... + 344160661.

It is an arithmetic number, because the mean of its divisors is an integer number (37892365056).

Almost surely, 2^{1233121231210} is an apocalyptic number.

1233121231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1233121231210 is a deficient number, since it is larger than the sum of its proper divisors (1191990132374).

1233121231210 is a wasteful number, since it uses less digits than its factorization.

1233121231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1233121231210 its reverse (121321213321), we get a palindrome (1354442444531).

The spelling of 1233121231210 in words is "one trillion, two hundred thirty-three billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred ten".