1212022210000 has 100 divisors (see below), whose sum is σ = 3353631019552. Its totient is φ = 415550448000.

The previous prime is 1212022209967. The next prime is 1212022210013. The reversal of 1212022210000 is 122202121.

It is a happy number.

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

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 8587302 + ... + 8727301.

Almost surely, 2^{1212022210000} is an apocalyptic number.

1212022210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212022210000 is an abundant number, since it is smaller than the sum of its proper divisors (2141608809552).

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

1212022210000 is an equidigital number, since it uses as much as digits as its factorization.

1212022210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17314638 (or 17314617 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1212022210000 its reverse (122202121), we get a palindrome (1212144412121).

The spelling of 1212022210000 in words is "one trillion, two hundred twelve billion, twenty-two million, two hundred ten thousand".