1214227331 has 4 divisors (see below), whose sum is σ = 1214297664. Its totient is φ = 1214157000.

The previous prime is 1214227327. The next prime is 1214227369. The reversal of 1214227331 is 1337224121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1337224121 = 1697 ⋅787993.

It is a cyclic number.

It is not a de Polignac number, because 1214227331 - 2² = 1214227327 is a prime.

It is a super-2 number, since 2×1214227331² = 2948696022694767122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214227331.

It is not an unprimeable number, because it can be changed into a prime (1214227321) 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, 10481 + ... + 50381.

It is an arithmetic number, because the mean of its divisors is an integer number (303574416).

Almost surely, 2^1214227331 is an apocalyptic number.

1214227331 is a deficient number, since it is larger than the sum of its proper divisors (70333).

1214227331 is an equidigital number, since it uses as much as digits as its factorization.

1214227331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70332.

The product of its digits is 2016, while the sum is 26.

The square root of 1214227331 is about 34845.7648933124. The cubic root of 1214227331 is about 1066.8417457516.

The spelling of 1214227331 in words is "one billion, two hundred fourteen million, two hundred twenty-seven thousand, three hundred thirty-one".