20121112020212 has 36 divisors (see below), whose sum is σ = 40982705037540. Its totient is φ = 8618729543424.

The previous prime is 20121112020203. The next prime is 20121112020263. The reversal of 20121112020212 is 21202021112102.

It can be written as a sum of positive squares in 2 ways, for example, as 1259862574096 + 18861249446116 = 1122436^2 + 4342954^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27037787 + ... + 27772002.

It is an arithmetic number, because the mean of its divisors is an integer number (1138408473265).

Almost surely, 2^{20121112020212} is an apocalyptic number.

It is an amenable number.

20121112020212 is an abundant number, since it is smaller than the sum of its proper divisors (20861593017328).

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

20121112020212 is a wasteful number, since it uses less digits than its factorization.

20121112020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54811680 (or 54811671 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20121112020212 its reverse (21202021112102), we get a palindrome (41323133132314).

The spelling of 20121112020212 in words is "twenty trillion, one hundred twenty-one billion, one hundred twelve million, twenty thousand, two hundred twelve".