1220714181 has 12 divisors (see below), whose sum is σ = 1767467520. Its totient is φ = 811864680.

The previous prime is 1220714177. The next prime is 1220714207. The reversal of 1220714181 is 1814170221.

It is not a de Polignac number, because 1220714181 - 2² = 1220714177 is a prime.

It is a super-2 number, since 2×1220714181² = 2980286223389001522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220714141) 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, 158085 + ... + 165626.

It is an arithmetic number, because the mean of its divisors is an integer number (147288960).

Almost surely, 2^1220714181 is an apocalyptic number.

It is an amenable number.

1220714181 is a deficient number, since it is larger than the sum of its proper divisors (546753339).

1220714181 is a wasteful number, since it uses less digits than its factorization.

1220714181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324136 (or 324133 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1220714181 is about 34938.7203686683. The cubic root of 1220714181 is about 1068.7381932008.

The spelling of 1220714181 in words is "one billion, two hundred twenty million, seven hundred fourteen thousand, one hundred eighty-one".