1210122220120 has 64 divisors (see below), whose sum is σ = 2999709015840. Its totient is φ = 435687552000.

The previous prime is 1210122220117. The next prime is 1210122220127. The reversal of 1210122220120 is 210222210121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210122220094 and 1210122220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210122220127) 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 15 ways as a sum of consecutive naturals, for example, 13570797 + ... + 13659676.

Almost surely, 2^{1210122220120} is an apocalyptic number.

1210122220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210122220120 is an abundant number, since it is smaller than the sum of its proper divisors (1789586795720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210122220120 is a wasteful number, since it uses less digits than its factorization.

1210122220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27230596 (or 27230592 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210122220120 its reverse (210222210121), we get a palindrome (1420344430241).

Subtracting from 1210122220120 its reverse (210222210121), we obtain a palindrome (999900009999).

The spelling of 1210122220120 in words is "one trillion, two hundred ten billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty".