1220535274 has 8 divisors (see below), whose sum is σ = 2092346208. Its totient is φ = 523086540.

The previous prime is 1220535259. The next prime is 1220535289. The reversal of 1220535274 is 4725350221.

It is an interprime number because it is at equal distance from previous prime (1220535259) and next prime (1220535289).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43590532 + ... + 43590559.

It is an arithmetic number, because the mean of its divisors is an integer number (261543276).

Almost surely, 2^1220535274 is an apocalyptic number.

1220535274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220535274 is a deficient number, since it is larger than the sum of its proper divisors (871810934).

1220535274 is an equidigital number, since it uses as much as digits as its factorization.

1220535274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87181100.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1220535274 is about 34936.1599778797. The cubic root of 1220535274 is about 1068.6859794808.

Adding to 1220535274 its reverse (4725350221), we get a palindrome (5945885495).

The spelling of 1220535274 in words is "one billion, two hundred twenty million, five hundred thirty-five thousand, two hundred seventy-four".