210220030 has 32 divisors (see below), whose sum is σ = 386412768. Its totient is φ = 82320000.

The previous prime is 210220019. The next prime is 210220033. The reversal of 210220030 is 30022012.

210220030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×210220030² = 88384922026401800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 210219989 and 210220016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152424 + ... + 153796.

It is an arithmetic number, because the mean of its divisors is an integer number (12075399).

Almost surely, 2^210220030 is an apocalyptic number.

210220030 is a deficient number, since it is larger than the sum of its proper divisors (176192738).

210220030 is a wasteful number, since it uses less digits than its factorization.

210220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 210220030 is about 14498.9665148934. The cubic root of 210220030 is about 594.5997166484.

Adding to 210220030 its reverse (30022012), we get a palindrome (240242042).

The spelling of 210220030 in words is "two hundred ten million, two hundred twenty thousand, thirty".