11230220015545 has 16 divisors (see below), whose sum is σ = 14469957065088. Its totient is φ = 8336600769280.

The previous prime is 11230220015533. The next prime is 11230220015587. The reversal of 11230220015545 is 54551002203211.

It is not a de Polignac number, because 11230220015545 - 2⁵ = 11230220015513 is a prime.

It is a super-2 number, since 2×11230220015545² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930418159 + ... + 930430228.

It is an arithmetic number, because the mean of its divisors is an integer number (904372316568).

Almost surely, 2^{11230220015545} is an apocalyptic number.

It is an amenable number.

11230220015545 is a deficient number, since it is larger than the sum of its proper divisors (3239737049543).

11230220015545 is a wasteful number, since it uses less digits than its factorization.

11230220015545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860848480.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 11230220015545 its reverse (54551002203211), we get a palindrome (65781222218756).

The spelling of 11230220015545 in words is "eleven trillion, two hundred thirty billion, two hundred twenty million, fifteen thousand, five hundred forty-five".