11155214229 has 4 divisors (see below), whose sum is σ = 14873618976. Its totient is φ = 7436809484.

The previous prime is 11155214221. The next prime is 11155214263. The reversal of 11155214229 is 92241255111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11155214229 - 2³ = 11155214221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11155214229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155214221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859202369 + ... + 1859202374.

It is an arithmetic number, because the mean of its divisors is an integer number (3718404744).

Almost surely, 2^11155214229 is an apocalyptic number.

It is an amenable number.

11155214229 is a deficient number, since it is larger than the sum of its proper divisors (3718404747).

11155214229 is an equidigital number, since it uses as much as digits as its factorization.

11155214229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718404746.

The product of its digits is 7200, while the sum is 33.

The spelling of 11155214229 in words is "eleven billion, one hundred fifty-five million, two hundred fourteen thousand, two hundred twenty-nine".