1210210202120 has 48 divisors (see below), whose sum is σ = 2820106432260. Its totient is φ = 467391513344.

The previous prime is 1210210202099. The next prime is 1210210202137. The reversal of 1210210202120 is 212020120121.

It can be written as a sum of positive squares in 6 ways, for example, as 639638451076 + 570571751044 = 799774^2 + 755362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210210202095 and 1210210202104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17954027 + ... + 18021306.

Almost surely, 2^{1210210202120} is an apocalyptic number.

1210210202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210210202120 is an abundant number, since it is smaller than the sum of its proper divisors (1609896230140).

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

1210210202120 is a wasteful number, since it uses less digits than its factorization.

1210210202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35975402 (or 35975369 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1210210202120 its reverse (212020120121), we get a palindrome (1422230322241).

The spelling of 1210210202120 in words is "one trillion, two hundred ten billion, two hundred ten million, two hundred two thousand, one hundred twenty".