222070637 has 4 divisors (see below), whose sum is σ = 227487036. Its totient is φ = 216654240.

The previous prime is 222070601. The next prime is 222070649. The reversal of 222070637 is 736070222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38576521 + 183494116 = 6211^2 + 13546^2 .

It is a cyclic number.

It is not a de Polignac number, because 222070637 - 2⁶ = 222070573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222070657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2708138 + ... + 2708219.

It is an arithmetic number, because the mean of its divisors is an integer number (56871759).

Almost surely, 2^222070637 is an apocalyptic number.

It is an amenable number.

222070637 is a deficient number, since it is larger than the sum of its proper divisors (5416399).

222070637 is an equidigital number, since it uses as much as digits as its factorization.

222070637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416398.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 222070637 is about 14902.0346597369. The cubic root of 222070637 is about 605.5691086356.

The spelling of 222070637 in words is "two hundred twenty-two million, seventy thousand, six hundred thirty-seven".