1220202312434 has 64 divisors (see below), whose sum is σ = 2138525798400. Its totient is φ = 511355376000.

The previous prime is 1220202312431. The next prime is 1220202312491. The reversal of 1220202312434 is 4342132020221.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220202312431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207479174 + ... + 207485054.

It is an arithmetic number, because the mean of its divisors is an integer number (33414465600).

Almost surely, 2^{1220202312434} is an apocalyptic number.

1220202312434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220202312434 is a deficient number, since it is larger than the sum of its proper divisors (918323485966).

1220202312434 is a wasteful number, since it uses less digits than its factorization.

1220202312434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7239.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1220202312434 its reverse (4342132020221), we get a palindrome (5562334332655).

The spelling of 1220202312434 in words is "one trillion, two hundred twenty billion, two hundred two million, three hundred twelve thousand, four hundred thirty-four".