210122130212 has 6 divisors (see below), whose sum is σ = 367713727878. Its totient is φ = 105061065104.

The previous prime is 210122130157. The next prime is 210122130217. The reversal of 210122130212 is 212031221012.

It can be written as a sum of positive squares in only one way, i.e., 150035374336 + 60086755876 = 387344^2 + 245126^2 .

It is not an unprimeable number, because it can be changed into a prime (210122130217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26265266273 + ... + 26265266280.

It is an arithmetic number, because the mean of its divisors is an integer number (61285621313).

Almost surely, 2^210122130212 is an apocalyptic number.

It is an amenable number.

210122130212 is a deficient number, since it is larger than the sum of its proper divisors (157591597666).

210122130212 is a wasteful number, since it uses less digits than its factorization.

210122130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52530532557 (or 52530532555 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 210122130212 its reverse (212031221012), we get a palindrome (422153351224).

The spelling of 210122130212 in words is "two hundred ten billion, one hundred twenty-two million, one hundred thirty thousand, two hundred twelve".