1212210210000 has 100 divisors (see below), whose sum is σ = 3913176282752. Its totient is φ = 323256048000.

The previous prime is 1212210209993. The next prime is 1212210210019. The reversal of 1212210210000 is 120122121.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20173504 + ... + 20233503.

Almost surely, 2^{1212210210000} is an apocalyptic number.

1212210210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212210210000 is an abundant number, since it is smaller than the sum of its proper divisors (2700966072752).

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

1212210210000 is an equidigital number, since it uses as much as digits as its factorization.

1212210210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40407038 (or 40407017 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212210210000 its reverse (120122121), we get a palindrome (1212330332121).

The spelling of 1212210210000 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred ten thousand".