20000220211212 has 24 divisors (see below), whose sum is σ = 49412308757616. Its totient is φ = 6274578889728.

The previous prime is 20000220211087. The next prime is 20000220211249. The reversal of 20000220211212 is 21211202200002.

It is a junction number, because it is equal to n+sod(n) for n = 20000220211191 and 20000220211200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49020147373 + ... + 49020147780.

It is an arithmetic number, because the mean of its divisors is an integer number (2058846198234).

Almost surely, 2^{20000220211212} is an apocalyptic number.

It is an amenable number.

20000220211212 is an abundant number, since it is smaller than the sum of its proper divisors (29412088546404).

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

20000220211212 is a wasteful number, since it uses less digits than its factorization.

20000220211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98040295177 (or 98040295175 counting only the distinct ones).

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

Adding to 20000220211212 its reverse (21211202200002), we get a palindrome (41211422411214).

The spelling of 20000220211212 in words is "twenty trillion, two hundred twenty million, two hundred eleven thousand, two hundred twelve".