1227020885 has 8 divisors (see below), whose sum is σ = 1523198520. Its totient is φ = 947767744.

The previous prime is 1227020857. The next prime is 1227020897. The reversal of 1227020885 is 5880207221.

It can be written as a sum of positive squares in 4 ways, for example, as 192626641 + 1034394244 = 13879^2 + 32162^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1227020885 - 2¹⁴ = 1227004501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4230962 + ... + 4231251.

It is an arithmetic number, because the mean of its divisors is an integer number (190399815).

Almost surely, 2^1227020885 is an apocalyptic number.

It is an amenable number.

1227020885 is a deficient number, since it is larger than the sum of its proper divisors (296177635).

1227020885 is an equidigital number, since it uses as much as digits as its factorization.

1227020885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8462247.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 1227020885 is about 35028.8578888893. The cubic root of 1227020885 is about 1070.5755441504.

The spelling of 1227020885 in words is "one billion, two hundred twenty-seven million, twenty thousand, eight hundred eighty-five".