1227202560 has 168 divisors, whose sum is σ = 4255320420. Its totient is φ = 327155712.

The previous prime is 1227202547. The next prime is 1227202567. The reversal of 1227202560 is 652027221.

It can be written as a sum of positive squares in 2 ways, for example, as 1207701504 + 19501056 = 34752^2 + 4416^2 .

It is a super-2 number, since 2×1227202560² = 3012052246541107200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1227202567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366976 + ... + 370304.

Almost surely, 2^1227202560 is an apocalyptic number.

1227202560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227202560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127660210).

1227202560 is an abundant number, since it is smaller than the sum of its proper divisors (3028117860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1227202560 is an equidigital number, since it uses as much as digits as its factorization.

1227202560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3339 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1227202560 is about 35031.4510119121. The cubic root of 1227202560 is about 1070.6283786800.

Adding to 1227202560 its reverse (652027221), we get a palindrome (1879229781).

The spelling of 1227202560 in words is "one billion, two hundred twenty-seven million, two hundred two thousand, five hundred sixty".