1210120322220 has 36 divisors (see below), whose sum is σ = 3670698311280. Its totient is φ = 322698752544.

The previous prime is 1210120322197. The next prime is 1210120322287. The reversal of 1210120322220 is 222230210121.

1210120322220 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 120 + 322 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 1210120322193 and 1210120322202.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3361445160 + ... + 3361445519.

It is an arithmetic number, because the mean of its divisors is an integer number (101963841980).

Almost surely, 2^{1210120322220} is an apocalyptic number.

1210120322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210120322220 is an abundant number, since it is smaller than the sum of its proper divisors (2460577989060).

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

1210120322220 is a wasteful number, since it uses less digits than its factorization.

1210120322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722890694 (or 6722890689 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1210120322220 its reverse (222230210121), we get a palindrome (1432350532341).

The spelling of 1210120322220 in words is "one trillion, two hundred ten billion, one hundred twenty million, three hundred twenty-two thousand, two hundred twenty".