201220030 has 32 divisors (see below), whose sum is σ = 397807200. Its totient is φ = 72673920.

The previous prime is 201219917. The next prime is 201220043. The reversal of 201220030 is 30022102.

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 = 201219989 and 201220016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10252 + ... + 22528.

It is an arithmetic number, because the mean of its divisors is an integer number (12431475).

Almost surely, 2^201220030 is an apocalyptic number.

201220030 is a deficient number, since it is larger than the sum of its proper divisors (196587170).

201220030 is a wasteful number, since it uses less digits than its factorization.

201220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12444.

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

The square root of 201220030 is about 14185.2046160780. The cubic root of 201220030 is about 585.9902676341.

Adding to 201220030 its reverse (30022102), we get a palindrome (231242132).

The spelling of 201220030 in words is "two hundred one million, two hundred twenty thousand, thirty".