20002201201212 has 48 divisors (see below), whose sum is σ = 47369013132672. Its totient is φ = 6567801514560.

The previous prime is 20002201201189. The next prime is 20002201201223. The reversal of 20002201201212 is 21210210220002.

It is a junction number, because it is equal to n+sod(n) for n = 20002201201191 and 20002201201200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100900263 + ... + 101098305.

It is an arithmetic number, because the mean of its divisors is an integer number (986854440264).

Almost surely, 2^{20002201201212} is an apocalyptic number.

It is an amenable number.

20002201201212 is an abundant number, since it is smaller than the sum of its proper divisors (27366811931460).

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

20002201201212 is a wasteful number, since it uses less digits than its factorization.

20002201201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323738 (or 323736 counting only the distinct ones).

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

Adding to 20002201201212 its reverse (21210210220002), we get a palindrome (41212411421214).

The spelling of 20002201201212 in words is "twenty trillion, two billion, two hundred one million, two hundred one thousand, two hundred twelve".