210122230212 has 36 divisors (see below), whose sum is σ = 559097164080. Its totient is φ = 66354388272.

The previous prime is 210122230189. The next prime is 210122230271. The reversal of 210122230212 is 212032221012.

210122230212 is a `hidden beast` number, since 210 + 12 + 2 + 230 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153597438 + ... + 153598805.

It is an arithmetic number, because the mean of its divisors is an integer number (15530476780).

Almost surely, 2^210122230212 is an apocalyptic number.

It is an amenable number.

210122230212 is an abundant number, since it is smaller than the sum of its proper divisors (348974933868).

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

210122230212 is a wasteful number, since it uses less digits than its factorization.

210122230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307196272 (or 307196267 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 210122230212 its reverse (212032221012), we get a palindrome (422154451224).

The spelling of 210122230212 in words is "two hundred ten billion, one hundred twenty-two million, two hundred thirty thousand, two hundred twelve".