212020022100212 has 18 divisors (see below), whose sum is σ = 387868386369618. Its totient is φ = 101400880133872.

The previous prime is 212020022100209. The next prime is 212020022100223. The reversal of 212020022100212 is 212001220020212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 211822525407376 + 197496692836 = 14554124^2 + 444406^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50099246963 + ... + 50099251194.

It is an arithmetic number, because the mean of its divisors is an integer number (21548243687201).

Almost surely, 2^{212020022100212} is an apocalyptic number.

It is an amenable number.

212020022100212 is a deficient number, since it is larger than the sum of its proper divisors (175848364269406).

212020022100212 is a wasteful number, since it uses less digits than its factorization.

212020022100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100198498207 (or 100198498182 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212020022100212 its reverse (212001220020212), we get a palindrome (424021242120424).

The spelling of 212020022100212 in words is "two hundred twelve trillion, twenty billion, twenty-two million, one hundred thousand, two hundred twelve".