1122130221 has 8 divisors (see below), whose sum is σ = 1517246784. Its totient is φ = 737550240.

The previous prime is 1122130211. The next prime is 1122130259. The reversal of 1122130221 is 1220312211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1122130221 - 2¹⁵ = 1122097453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122130221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122130201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2633896 + ... + 2634321.

It is an arithmetic number, because the mean of its divisors is an integer number (189655848).

Almost surely, 2^1122130221 is an apocalyptic number.

It is an amenable number.

1122130221 is a deficient number, since it is larger than the sum of its proper divisors (395116563).

1122130221 is an equidigital number, since it uses as much as digits as its factorization.

1122130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268291.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1122130221 is about 33498.2122060268. The cubic root of 1122130221 is about 1039.1568057670.

Adding to 1122130221 its reverse (1220312211), we get a palindrome (2342442432).

The spelling of 1122130221 in words is "one billion, one hundred twenty-two million, one hundred thirty thousand, two hundred twenty-one".