201022030 has 32 divisors (see below), whose sum is σ = 395318880. Its totient is φ = 72990720.

The previous prime is 201022013. The next prime is 201022037. The reversal of 201022030 is 30220102.

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 = 201021998 and 201022016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022037) 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, 141966 + ... + 143374.

It is an arithmetic number, because the mean of its divisors is an integer number (12353715).

Almost surely, 2^201022030 is an apocalyptic number.

201022030 is a deficient number, since it is larger than the sum of its proper divisors (194296850).

201022030 is a wasteful number, since it uses less digits than its factorization.

201022030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724.

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

The square root of 201022030 is about 14178.2237956664. The cubic root of 201022030 is about 585.7980002436.

Adding to 201022030 its reverse (30220102), we get a palindrome (231242132).

The spelling of 201022030 in words is "two hundred one million, twenty-two thousand, thirty".