11011220001213 has 48 divisors (see below), whose sum is σ = 15220121657856. Its totient is φ = 7080519600000.

The previous prime is 11011220001193. The next prime is 11011220001277. The reversal of 11011220001213 is 31210002211011.

It is not a de Polignac number, because 11011220001213 - 2¹² = 11011219997117 is a prime.

It is a super-2 number, since 2×11011220001213² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11011220001192 and 11011220001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011220001413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160640758 + ... + 160709288.

It is an arithmetic number, because the mean of its divisors is an integer number (317085867872).

Almost surely, 2^{11011220001213} is an apocalyptic number.

It is an amenable number.

11011220001213 is a deficient number, since it is larger than the sum of its proper divisors (4208901656643).

11011220001213 is a wasteful number, since it uses less digits than its factorization.

11011220001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68978 (or 68937 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11011220001213 its reverse (31210002211011), we get a palindrome (42221222212224).

The spelling of 11011220001213 in words is "eleven trillion, eleven billion, two hundred twenty million, one thousand, two hundred thirteen".