1214221351 has 16 divisors (see below), whose sum is σ = 1399479808. Its totient is φ = 1031940000.

The previous prime is 1214221343. The next prime is 1214221363. The reversal of 1214221351 is 1531224121.

It is not a de Polignac number, because 1214221351 - 2³ = 1214221343 is a prime.

It is a super-3 number, since 3×1214221351³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214221321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110361 + ... + 1111453.

It is an arithmetic number, because the mean of its divisors is an integer number (87467488).

Almost surely, 2^1214221351 is an apocalyptic number.

1214221351 is a deficient number, since it is larger than the sum of its proper divisors (185258457).

1214221351 is a wasteful number, since it uses less digits than its factorization.

1214221351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302.

The product of its digits is 480, while the sum is 22.

The square root of 1214221351 is about 34845.6790865094. The cubic root of 1214221351 is about 1066.8399943705.

Adding to 1214221351 its reverse (1531224121), we get a palindrome (2745445472).

The spelling of 1214221351 in words is "one billion, two hundred fourteen million, two hundred twenty-one thousand, three hundred fifty-one".