1220222043 has 16 divisors (see below), whose sum is σ = 1808276640. Its totient is φ = 813238272.

The previous prime is 1220222041. The next prime is 1220222053. The reversal of 1220222043 is 3402220221.

1220222043 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1220222043 - 2¹ = 1220222041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220222041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161355 + ... + 168747.

It is an arithmetic number, because the mean of its divisors is an integer number (113017290).

Almost surely, 2^1220222043 is an apocalyptic number.

1220222043 is a deficient number, since it is larger than the sum of its proper divisors (588054597).

1220222043 is an equidigital number, since it uses as much as digits as its factorization.

1220222043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13515 (or 13509 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1220222043 is about 34931.6767848324. The cubic root of 1220222043 is about 1068.5945512293.

Adding to 1220222043 its reverse (3402220221), we get a palindrome (4622442264).

The spelling of 1220222043 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, forty-three".