20000120212 has 24 divisors (see below), whose sum is σ = 36746047296. Its totient is φ = 9506585088.

The previous prime is 20000120209. The next prime is 20000120243. The reversal of 20000120212 is 21202100002.

It is a congruent number.

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, 651853 + ... + 681844.

It is an arithmetic number, because the mean of its divisors is an integer number (1531085304).

Almost surely, 2^20000120212 is an apocalyptic number.

It is an amenable number.

20000120212 is a deficient number, since it is larger than the sum of its proper divisors (16745927084).

20000120212 is a wasteful number, since it uses less digits than its factorization.

20000120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333887 (or 1333885 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20000120212 its reverse (21202100002), we get a palindrome (41202220214).

The spelling of 20000120212 in words is "twenty billion, one hundred twenty thousand, two hundred twelve".