1147220122 has 8 divisors (see below), whose sum is σ = 1723058676. Its totient is φ = 572867232.

The previous prime is 1147220117. The next prime is 1147220141. The reversal of 1147220122 is 2210227411.

It can be written as a sum of positive squares in 2 ways, for example, as 767788681 + 379431441 = 27709^2 + 19479^2 .

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

It is a super-2 number, since 2×1147220122² = 2632228016643389768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1147220093 and 1147220102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369483 + ... + 372574.

Almost surely, 2^1147220122 is an apocalyptic number.

1147220122 is a deficient number, since it is larger than the sum of its proper divisors (575838554).

1147220122 is an equidigital number, since it uses as much as digits as its factorization.

1147220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742832.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1147220122 is about 33870.6380512679. The cubic root of 1147220122 is about 1046.8446838857.

Adding to 1147220122 its reverse (2210227411), we get a palindrome (3357447533).

The spelling of 1147220122 in words is "one billion, one hundred forty-seven million, two hundred twenty thousand, one hundred twenty-two".