20012211002212 has 144 divisors (see below), whose sum is σ = 41961244910256. Its totient is φ = 8294951808000.

The previous prime is 20012211002153. The next prime is 20012211002227. The reversal of 20012211002212 is 21220011221002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1880233318656 + 18131977683556 = 1371216^2 + 4258166^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170838462 + ... + 170955562.

It is an arithmetic number, because the mean of its divisors is an integer number (291397534099).

Almost surely, 2^{20012211002212} is an apocalyptic number.

20012211002212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20012211002212 is an abundant number, since it is smaller than the sum of its proper divisors (21949033908044).

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

20012211002212 is a wasteful number, since it uses less digits than its factorization.

20012211002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117470 (or 117457 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20012211002212 its reverse (21220011221002), we get a palindrome (41232222223214).

The spelling of 20012211002212 in words is "twenty trillion, twelve billion, two hundred eleven million, two thousand, two hundred twelve".