20002100212212 has 48 divisors (see below), whose sum is σ = 47013788805312. Its totient is φ = 6618481148160.

The previous prime is 20002100212163. The next prime is 20002100212219. The reversal of 20002100212212 is 21221200120002.

It is a junction number, because it is equal to n+sod(n) for n = 20002100212191 and 20002100212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002100212219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54019818 + ... + 54388830.

It is an arithmetic number, because the mean of its divisors is an integer number (979453933444).

Almost surely, 2^{20002100212212} is an apocalyptic number.

It is an amenable number.

20002100212212 is an abundant number, since it is smaller than the sum of its proper divisors (27011688593100).

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

20002100212212 is a wasteful number, since it uses less digits than its factorization.

20002100212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402128 (or 402126 counting only the distinct ones).

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

Adding to 20002100212212 its reverse (21221200120002), we get a palindrome (41223300332214).

The spelling of 20002100212212 in words is "twenty trillion, two billion, one hundred million, two hundred twelve thousand, two hundred twelve".