221240130 has 32 divisors (see below), whose sum is σ = 549288000. Its totient is φ = 56962752.

The previous prime is 221240119. The next prime is 221240143. The reversal of 221240130 is 31042122.

221240130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 126280 + ... + 128019.

It is an arithmetic number, because the mean of its divisors is an integer number (17165250).

Almost surely, 2^221240130 is an apocalyptic number.

221240130 is an abundant number, since it is smaller than the sum of its proper divisors (328047870).

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

221240130 is a wasteful number, since it uses less digits than its factorization.

221240130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254338.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 221240130 is about 14874.1430005228. The cubic root of 221240130 is about 604.8132565734.

Adding to 221240130 its reverse (31042122), we get a palindrome (252282252).

The spelling of 221240130 in words is "two hundred twenty-one million, two hundred forty thousand, one hundred thirty".