221146214311 has 8 divisors (see below), whose sum is σ = 241288418448. Its totient is φ = 201010344000.

The previous prime is 221146214299. The next prime is 221146214321. The reversal of 221146214311 is 113412641122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221146214311 - 2⁷ = 221146214183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221146214311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221146214321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510300 + ... + 1650241.

It is an arithmetic number, because the mean of its divisors is an integer number (30161052306).

Almost surely, 2^221146214311 is an apocalyptic number.

221146214311 is a deficient number, since it is larger than the sum of its proper divisors (20142204137).

221146214311 is a wasteful number, since it uses less digits than its factorization.

221146214311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166913.

The product of its digits is 2304, while the sum is 28.

Adding to 221146214311 its reverse (113412641122), we get a palindrome (334558855433).

The spelling of 221146214311 in words is "two hundred twenty-one billion, one hundred forty-six million, two hundred fourteen thousand, three hundred eleven".