1220333122 has 4 divisors (see below), whose sum is σ = 1830499686. Its totient is φ = 610166560.

The previous prime is 1220333113. The next prime is 1220333123. The reversal of 1220333122 is 2213330221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2213330221 = 139 ⋅15923239.

It can be written as a sum of positive squares in only one way, i.e., 919969561 + 300363561 = 30331^2 + 17331^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1220333122.

It is not an unprimeable number, because it can be changed into a prime (1220333123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305083279 + ... + 305083282.

Almost surely, 2^1220333122 is an apocalyptic number.

1220333122 is a deficient number, since it is larger than the sum of its proper divisors (610166564).

1220333122 is an equidigital number, since it uses as much as digits as its factorization.

1220333122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610166563.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1220333122 is about 34933.2666952291. The cubic root of 1220333122 is about 1068.6269756047.

Adding to 1220333122 its reverse (2213330221), we get a palindrome (3433663343).

The spelling of 1220333122 in words is "one billion, two hundred twenty million, three hundred thirty-three thousand, one hundred twenty-two".