2111221030 has 16 divisors (see below), whose sum is σ = 3810392784. Its totient is φ = 842222880.

The previous prime is 2111221019. The next prime is 2111221031. The reversal of 2111221030 is 301221112.

It is a self number, because there is not a number n which added to its sum of digits gives 2111221030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111221031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279276 + ... + 286735.

It is an arithmetic number, because the mean of its divisors is an integer number (238149549).

Almost surely, 2^2111221030 is an apocalyptic number.

2111221030 is a deficient number, since it is larger than the sum of its proper divisors (1699171754).

2111221030 is a wasteful number, since it uses less digits than its factorization.

2111221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566391.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2111221030 is about 45948.0253112144. The cubic root of 2111221030 is about 1282.8559744060.

Adding to 2111221030 its reverse (301221112), we get a palindrome (2412442142).

The spelling of 2111221030 in words is "two billion, one hundred eleven million, two hundred twenty-one thousand, thirty".