1220012022313 has 12 divisors (see below), whose sum is σ = 1433828567892. Its totient is φ = 1034943920640.

The previous prime is 1220012022301. The next prime is 1220012022353. The reversal of 1220012022313 is 3132202100221.

It can be written as a sum of positive squares in 2 ways, for example, as 733494612249 + 486517410064 = 856443^2 + 697508^2 .

It is not a de Polignac number, because 1220012022313 - 2²¹ = 1220009925161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220012022353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128336508 + ... + 128346013.

It is an arithmetic number, because the mean of its divisors is an integer number (119485713991).

Almost surely, 2^{1220012022313} is an apocalyptic number.

It is an amenable number.

1220012022313 is a deficient number, since it is larger than the sum of its proper divisors (213816545579).

1220012022313 is an equidigital number, since it uses as much as digits as its factorization.

1220012022313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256682632 (or 256682625 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1220012022313 its reverse (3132202100221), we get a palindrome (4352214122534).

The spelling of 1220012022313 in words is "one trillion, two hundred twenty billion, twelve million, twenty-two thousand, three hundred thirteen".