20121212022000 has 80 divisors (see below), whose sum is σ = 64870787578272. Its totient is φ = 5365656537600.

The previous prime is 20121212021983. The next prime is 20121212022013. The reversal of 20121212022000 is 22021212102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1676761669 + ... + 1676773668.

Almost surely, 2^{20121212022000} is an apocalyptic number.

20121212022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20121212022000 is an abundant number, since it is smaller than the sum of its proper divisors (44749575556272).

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

20121212022000 is a wasteful number, since it uses less digits than its factorization.

20121212022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353535363 (or 3353535347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121212022000 its reverse (22021212102), we get a palindrome (20143233234102).

The spelling of 20121212022000 in words is "twenty trillion, one hundred twenty-one billion, two hundred twelve million, twenty-two thousand".