210122072 has 16 divisors (see below), whose sum is σ = 396340560. Its totient is φ = 104431264.

The previous prime is 210122071. The next prime is 210122119. The reversal of 210122072 is 270221012.

It is a self number, because there is not a number n which added to its sum of digits gives 210122072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77303 + ... + 79974.

It is an arithmetic number, because the mean of its divisors is an integer number (24771285).

Almost surely, 2^210122072 is an apocalyptic number.

It is an amenable number.

210122072 is a deficient number, since it is larger than the sum of its proper divisors (186218488).

210122072 is a wasteful number, since it uses less digits than its factorization.

210122072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157450 (or 157446 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 210122072 is about 14495.5880184282. The cubic root of 210122072 is about 594.5073454180.

Adding to 210122072 its reverse (270221012), we get a palindrome (480343084).

The spelling of 210122072 in words is "two hundred ten million, one hundred twenty-two thousand, seventy-two".