1222002043 has 4 divisors (see below), whose sum is σ = 1286317960. Its totient is φ = 1157686128.

The previous prime is 1222002017. The next prime is 1222002049. The reversal of 1222002043 is 3402002221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222002043 - 2²¹ = 1219904891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222002049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32157930 + ... + 32157967.

It is an arithmetic number, because the mean of its divisors is an integer number (321579490).

Almost surely, 2^1222002043 is an apocalyptic number.

1222002043 is a deficient number, since it is larger than the sum of its proper divisors (64315917).

1222002043 is an equidigital number, since it uses as much as digits as its factorization.

1222002043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64315916.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1222002043 is about 34957.1458074025. The cubic root of 1222002043 is about 1069.1139031962.

Adding to 1222002043 its reverse (3402002221), we get a palindrome (4624004264).

The spelling of 1222002043 in words is "one billion, two hundred twenty-two million, two thousand, forty-three".