2221023122 has 4 divisors (see below), whose sum is σ = 3331534686. Its totient is φ = 1110511560.

The previous prime is 2221023109. The next prime is 2221023127. The reversal of 2221023122 is 2213201222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1555434721 + 665588401 = 39439^2 + 25799^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2221023122.

It is not an unprimeable number, because it can be changed into a prime (2221023127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555255779 + ... + 555255782.

Almost surely, 2^2221023122 is an apocalyptic number.

2221023122 is a deficient number, since it is larger than the sum of its proper divisors (1110511564).

2221023122 is a wasteful number, since it uses less digits than its factorization.

2221023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110511563.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2221023122 is about 47127.7319844696. The cubic root of 2221023122 is about 1304.7211222268.

Adding to 2221023122 its reverse (2213201222), we get a palindrome (4434224344).

The spelling of 2221023122 in words is "two billion, two hundred twenty-one million, twenty-three thousand, one hundred twenty-two".