1213010322120 has 192 divisors, whose sum is σ = 4286999124720. Its totient is φ = 296213594112.

The previous prime is 1213010322119. The next prime is 1213010322149. The reversal of 1213010322120 is 212230103121.

1213010322120 is a `hidden beast` number, since 1 + 21 + 301 + 0 + 322 + 1 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 735145048836 + 477865273284 = 857406^2 + 691278^2 .

It is a super-2 number, since 2×1213010322120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1213010322093 and 1213010322102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2451997 + ... + 2904876.

Almost surely, 2^{1213010322120} is an apocalyptic number.

1213010322120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213010322120 is an abundant number, since it is smaller than the sum of its proper divisors (3073988802600).

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

1213010322120 is a wasteful number, since it uses less digits than its factorization.

1213010322120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356944 (or 5356937 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1213010322120 its reverse (212230103121), we get a palindrome (1425240425241).

The spelling of 1213010322120 in words is "one trillion, two hundred thirteen billion, ten million, three hundred twenty-two thousand, one hundred twenty".