221122030 has 16 divisors (see below), whose sum is σ = 400085424. Its totient is φ = 87989760.

The previous prime is 221122003. The next prime is 221122049. The reversal of 221122030 is 30221122.

It is a self number, because there is not a number n which added to its sum of digits gives 221122030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55356 + ... + 59215.

It is an arithmetic number, because the mean of its divisors is an integer number (25005339).

Almost surely, 2^221122030 is an apocalyptic number.

221122030 is a deficient number, since it is larger than the sum of its proper divisors (178963394).

221122030 is a wasteful number, since it uses less digits than its factorization.

221122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114771.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 221122030 is about 14870.1724939558. The cubic root of 221122030 is about 604.7056191403.

Adding to 221122030 its reverse (30221122), we get a palindrome (251343152).

It can be divided in two parts, 22112 and 2030, that added together give a palindrome (24142).

The spelling of 221122030 in words is "two hundred twenty-one million, one hundred twenty-two thousand, thirty".