1220322098 has 4 divisors (see below), whose sum is σ = 1830483150. Its totient is φ = 610161048.

The previous prime is 1220322079. The next prime is 1220322107. The reversal of 1220322098 is 8902230221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8902230221 = 647 ⋅13759243.

It can be written as a sum of positive squares in only one way, i.e., 1010159089 + 210163009 = 31783^2 + 14497^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220322098.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305080523 + ... + 305080526.

Almost surely, 2^1220322098 is an apocalyptic number.

1220322098 is a deficient number, since it is larger than the sum of its proper divisors (610161052).

1220322098 is an equidigital number, since it uses as much as digits as its factorization.

1220322098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610161051.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1220322098 is about 34933.1089083122. The cubic root of 1220322098 is about 1068.6237577458.

The spelling of 1220322098 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, ninety-eight".