210122010 has 96 divisors (see below), whose sum is σ = 635057280. Its totient is φ = 47205504.

The previous prime is 210121981. The next prime is 210122021. The reversal of 210122010 is 10221012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210121983 and 210122001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34344 + ... + 39996.

It is an arithmetic number, because the mean of its divisors is an integer number (6615180).

Almost surely, 2^210122010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210122010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317528640).

210122010 is an abundant number, since it is smaller than the sum of its proper divisors (424935270).

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

210122010 is a wasteful number, since it uses less digits than its factorization.

210122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732 (or 5729 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 210122010 is about 14495.5858798463. The cubic root of 210122010 is about 594.5072869449.

Adding to 210122010 its reverse (10221012), we get a palindrome (220343022).

The spelling of 210122010 in words is "two hundred ten million, one hundred twenty-two thousand, ten".