1147818222442 has 4 divisors (see below), whose sum is σ = 1721727333666. Its totient is φ = 573909111220.

The previous prime is 1147818222433. The next prime is 1147818222469. The reversal of 1147818222442 is 2442228187411.

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., 1052083055521 + 95735166921 = 1025711^2 + 309411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1147818222392 and 1147818222401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286954555609 + ... + 286954555612.

Almost surely, 2^{1147818222442} is an apocalyptic number.

1147818222442 is a deficient number, since it is larger than the sum of its proper divisors (573909111224).

1147818222442 is an equidigital number, since it uses as much as digits as its factorization.

1147818222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573909111223.

The product of its digits is 458752, while the sum is 46.

The spelling of 1147818222442 in words is "one trillion, one hundred forty-seven billion, eight hundred eighteen million, two hundred twenty-two thousand, four hundred forty-two".