210122010020212 has 6 divisors (see below), whose sum is σ = 367713517535378. Its totient is φ = 105061005010104.

The previous prime is 210122010020137. The next prime is 210122010020213. The reversal of 210122010020212 is 212020010221012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 192465844718436 + 17656165301776 = 13873206^2 + 4201924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122010020213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26265251252523 + ... + 26265251252530.

Almost surely, 2^{210122010020212} is an apocalyptic number.

It is an amenable number.

210122010020212 is a deficient number, since it is larger than the sum of its proper divisors (157591507515166).

210122010020212 is a wasteful number, since it uses less digits than its factorization.

210122010020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52530502505057 (or 52530502505055 counting only the distinct ones).

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

Adding to 210122010020212 its reverse (212020010221012), we get a palindrome (422142020241224).

The spelling of 210122010020212 in words is "two hundred ten trillion, one hundred twenty-two billion, ten million, twenty thousand, two hundred twelve".