1213021232110 has 32 divisors (see below), whose sum is σ = 2333940340032. Its totient is φ = 452792651520.

The previous prime is 1213021232011. The next prime is 1213021232141. The reversal of 1213021232110 is 112321203121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64307709 + ... + 64326568.

It is an arithmetic number, because the mean of its divisors is an integer number (72935635626).

Almost surely, 2^{1213021232110} is an apocalyptic number.

1213021232110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213021232110 is a deficient number, since it is larger than the sum of its proper divisors (1120919107922).

1213021232110 is a wasteful number, since it uses less digits than its factorization.

1213021232110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128634348.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1213021232110 its reverse (112321203121), we get a palindrome (1325342435231).

The spelling of 1213021232110 in words is "one trillion, two hundred thirteen billion, twenty-one million, two hundred thirty-two thousand, one hundred ten".