1210122020000 has 60 divisors (see below), whose sum is σ = 2977081736706. Its totient is φ = 484048800000.

The previous prime is 1210122019999. The next prime is 1210122020011. The reversal of 1210122020000 is 202210121.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 3103381264 + 1207018638736 = 55708^2 + 1098644^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30233051 + ... + 30273050.

Almost surely, 2^{1210122020000} is an apocalyptic number.

1210122020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210122020000 is an abundant number, since it is smaller than the sum of its proper divisors (1766959716706).

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

1210122020000 is an frugal number, since it uses more digits than its factorization.

1210122020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60506131 (or 60506108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1210122020000 its reverse (202210121), we get a palindrome (1210324230121).

The spelling of 1210122020000 in words is "one trillion, two hundred ten billion, one hundred twenty-two million, twenty thousand".