1220113233211 has 6 divisors (see below), whose sum is σ = 1237056075780. Its totient is φ = 1203399348048.

The previous prime is 1220113233193. The next prime is 1220113233301. The reversal of 1220113233211 is 1123323110221.

It is not a de Polignac number, because 1220113233211 - 2¹⁵ = 1220113200443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220113239211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114473301 + ... + 114483958.

It is an arithmetic number, because the mean of its divisors is an integer number (206176012630).

Almost surely, 2^{1220113233211} is an apocalyptic number.

1220113233211 is a deficient number, since it is larger than the sum of its proper divisors (16942842569).

1220113233211 is an frugal number, since it uses more digits than its factorization.

1220113233211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228957405 (or 228957332 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1220113233211 its reverse (1123323110221), we get a palindrome (2343436343432).

The spelling of 1220113233211 in words is "one trillion, two hundred twenty billion, one hundred thirteen million, two hundred thirty-three thousand, two hundred eleven".