1077255221 has 16 divisors (see below), whose sum is σ = 1262921088. Its totient is φ = 899640000.

The previous prime is 1077255203. The next prime is 1077255247. The reversal of 1077255221 is 1225527701.

It is not a de Polignac number, because 1077255221 - 2²² = 1073060917 is a prime.

It is a super-2 number, since 2×1077255221² = 2320957622343517682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077255251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122471 + ... + 130971.

It is an arithmetic number, because the mean of its divisors is an integer number (78932568).

Almost surely, 2^1077255221 is an apocalyptic number.

It is an amenable number.

1077255221 is a deficient number, since it is larger than the sum of its proper divisors (185665867).

1077255221 is an equidigital number, since it uses as much as digits as its factorization.

1077255221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 1077255221 is about 32821.5664007677. The cubic root of 1077255221 is about 1025.1156628551.

The spelling of 1077255221 in words is "one billion, seventy-seven million, two hundred fifty-five thousand, two hundred twenty-one".