20000221212102 has 16 divisors (see below), whose sum is σ = 41081535463152. Its totient is φ = 6486558230880.

The previous prime is 20000221212089. The next prime is 20000221212119. The reversal of 20000221212102 is 20121212200002.

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 7 ways as a sum of consecutive naturals, for example, 45045543049 + ... + 45045543492.

It is an arithmetic number, because the mean of its divisors is an integer number (2567595966447).

Almost surely, 2^{20000221212102} is an apocalyptic number.

20000221212102 is an abundant number, since it is smaller than the sum of its proper divisors (21081314251050).

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

20000221212102 is a wasteful number, since it uses less digits than its factorization.

20000221212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90091086583.

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

Adding to 20000221212102 its reverse (20121212200002), we get a palindrome (40121433412104).

The spelling of 20000221212102 in words is "twenty trillion, two hundred twenty-one million, two hundred twelve thousand, one hundred two".