2221700007 has 8 divisors (see below), whose sum is σ = 2977615984. Its totient is φ = 1473458688.

The previous prime is 2221700003. The next prime is 2221700053. The reversal of 2221700007 is 7000071222.

2221700007 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 a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221700007 - 2² = 2221700003 is a prime.

It is a super-2 number, since 2×2221700007² = 9871901842207600098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221700003) 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, 1917988 + ... + 1919145.

It is an arithmetic number, because the mean of its divisors is an integer number (372201998).

Almost surely, 2^2221700007 is an apocalyptic number.

2221700007 is a deficient number, since it is larger than the sum of its proper divisors (755915977).

2221700007 is a wasteful number, since it uses less digits than its factorization.

2221700007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837329.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 2221700007 is about 47134.9128247841. The cubic root of 2221700007 is about 1304.8536522077.

Adding to 2221700007 its reverse (7000071222), we get a palindrome (9221771229).

The spelling of 2221700007 in words is "two billion, two hundred twenty-one million, seven hundred thousand, seven".