212221020122212 has 6 divisors (see below), whose sum is σ = 371386785213878. Its totient is φ = 106110510061104.

The previous prime is 212221020122203. The next prime is 212221020122213.

212221020122212 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 204506702741056 + 7714317381156 = 14300584^2 + 2777466^2 .

It is a super-2 number, since 2×212221020122212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212221020122213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26527627515273 + ... + 26527627515280.

Almost surely, 2^{212221020122212} is an apocalyptic number.

It is an amenable number.

212221020122212 is a deficient number, since it is larger than the sum of its proper divisors (159165765091666).

212221020122212 is a wasteful number, since it uses less digits than its factorization.

212221020122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53055255030557 (or 53055255030555 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 212221020122212 in words is "two hundred twelve trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, two hundred twelve".