2220507081 has 32 divisors (see below), whose sum is σ = 3550014720. Its totient is φ = 1363640832.

The previous prime is 2220507077. The next prime is 2220507127. The reversal of 2220507081 is 1807050222.

2220507081 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2220507081 - 2² = 2220507077 is a prime.

It is a super-2 number, since 2×2220507081² = 9861303393542281122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2220507001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170265 + ... + 182841.

It is an arithmetic number, because the mean of its divisors is an integer number (110937960).

Almost surely, 2^2220507081 is an apocalyptic number.

It is an amenable number.

2220507081 is a deficient number, since it is larger than the sum of its proper divisors (1329507639).

2220507081 is a wasteful number, since it uses less digits than its factorization.

2220507081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13102 (or 13096 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2220507081 is about 47122.2567477408. The cubic root of 2220507081 is about 1304.6200664360.

The spelling of 2220507081 in words is "two billion, two hundred twenty million, five hundred seven thousand, eighty-one".