20012210120000 has 140 divisors (see below), whose sum is σ = 56712888941280. Its totient is φ = 6861329088000.

The previous prime is 20012210119949. The next prime is 20012210120039. The reversal of 20012210120000 is 2101221002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (140).

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, 35456090 + ... + 36016089.

Almost surely, 2^{20012210120000} is an apocalyptic number.

20012210120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012210120000 is an abundant number, since it is smaller than the sum of its proper divisors (36700678821280).

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

20012210120000 is an frugal number, since it uses more digits than its factorization.

20012210120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71472218 (or 71472193 counting only the distinct ones).

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

Adding to 20012210120000 its reverse (2101221002), we get a palindrome (20014311341002).

The spelling of 20012210120000 in words is "twenty trillion, twelve billion, two hundred ten million, one hundred twenty thousand".