1212010222120 has 16 divisors (see below), whose sum is σ = 2727022999860. Its totient is φ = 484804088832.

The previous prime is 1212010222103. The next prime is 1212010222121. The reversal of 1212010222120 is 212220102121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1123519441444 + 88490780676 = 1059962^2 + 297474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1212010222094 and 1212010222103.

It is not an unprimeable number, because it can be changed into a prime (1212010222121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15150127737 + ... + 15150127816.

Almost surely, 2^{1212010222120} is an apocalyptic number.

1212010222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212010222120 is an abundant number, since it is smaller than the sum of its proper divisors (1515012777740).

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

1212010222120 is a wasteful number, since it uses less digits than its factorization.

1212010222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30300255564 (or 30300255560 counting only the distinct ones).

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

Adding to 1212010222120 its reverse (212220102121), we get a palindrome (1424230324241).

The spelling of 1212010222120 in words is "one trillion, two hundred twelve billion, ten million, two hundred twenty-two thousand, one hundred twenty".