1213022220113 has 8 divisors (see below), whose sum is σ = 1340047562880. Its totient is φ = 1088788643280.

The previous prime is 1213022220077. The next prime is 1213022220191. The reversal of 1213022220113 is 3110222203121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213022220113 - 2¹⁸ = 1213021957969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1213022220313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697940570 + ... + 697942307.

It is an arithmetic number, because the mean of its divisors is an integer number (167505945360).

Almost surely, 2^{1213022220113} is an apocalyptic number.

It is an amenable number.

1213022220113 is a deficient number, since it is larger than the sum of its proper divisors (127025342767).

1213022220113 is a wasteful number, since it uses less digits than its factorization.

1213022220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395882967.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1213022220113 its reverse (3110222203121), we get a palindrome (4323244423234).

The spelling of 1213022220113 in words is "one trillion, two hundred thirteen billion, twenty-two million, two hundred twenty thousand, one hundred thirteen".