221080274 has 16 divisors (see below), whose sum is σ = 351961848. Its totient is φ = 103790592.

The previous prime is 221080273. The next prime is 221080283. The reversal of 221080274 is 472080122.

It can be written as a sum of positive squares in 4 ways, for example, as 160909225 + 60171049 = 12685^2 + 7757^2 .

It is not an unprimeable number, because it can be changed into a prime (221080271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7214 + ... + 22230.

Almost surely, 2^221080274 is an apocalyptic number.

221080274 is a deficient number, since it is larger than the sum of its proper divisors (130881574).

221080274 is a wasteful number, since it uses less digits than its factorization.

221080274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15469.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 221080274 is about 14868.7684089840. The cubic root of 221080274 is about 604.6675531647.

The spelling of 221080274 in words is "two hundred twenty-one million, eighty thousand, two hundred seventy-four".