1220414251 has 16 divisors (see below), whose sum is σ = 1492245760. Its totient is φ = 974760480.

The previous prime is 1220414197. The next prime is 1220414257. The reversal of 1220414251 is 1524140221.

It is not a de Polignac number, because 1220414251 - 2¹¹ = 1220412203 is a prime.

It is a super-3 number, since 3×1220414251³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220414257) 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, 67101 + ... + 83326.

It is an arithmetic number, because the mean of its divisors is an integer number (93265360).

Almost surely, 2^1220414251 is an apocalyptic number.

1220414251 is a deficient number, since it is larger than the sum of its proper divisors (271831509).

1220414251 is a wasteful number, since it uses less digits than its factorization.

1220414251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150514.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1220414251 is about 34934.4278756644. The cubic root of 1220414251 is about 1068.6506562197.

Adding to 1220414251 its reverse (1524140221), we get a palindrome (2744554472).

The spelling of 1220414251 in words is "one billion, two hundred twenty million, four hundred fourteen thousand, two hundred fifty-one".