1220051320213 has 16 divisors (see below), whose sum is σ = 1334947669056. Its totient is φ = 1105821383040.

The previous prime is 1220051320211. The next prime is 1220051320217. The reversal of 1220051320213 is 3120231500221.

It is not a de Polignac number, because 1220051320213 - 2¹ = 1220051320211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220051320211) 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, 9337270 + ... + 9467032.

It is an arithmetic number, because the mean of its divisors is an integer number (83434229316).

Almost surely, 2^{1220051320213} is an apocalyptic number.

It is an amenable number.

1220051320213 is a deficient number, since it is larger than the sum of its proper divisors (114896348843).

1220051320213 is a wasteful number, since it uses less digits than its factorization.

1220051320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132324.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1220051320213 its reverse (3120231500221), we get a palindrome (4340282820434).

The spelling of 1220051320213 in words is "one trillion, two hundred twenty billion, fifty-one million, three hundred twenty thousand, two hundred thirteen".