222001007 has 4 divisors (see below), whose sum is σ = 222180000. Its totient is φ = 221822016.

The previous prime is 222001001. The next prime is 222001009. The reversal of 222001007 is 700100222.

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

It is a cyclic number.

It is not a de Polignac number, because 222001007 - 2¹⁰ = 221999983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222000982 and 222001000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001001) 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, 87623 + ... + 90120.

It is an arithmetic number, because the mean of its divisors is an integer number (55545000).

Almost surely, 2^222001007 is an apocalyptic number.

222001007 is a deficient number, since it is larger than the sum of its proper divisors (178993).

222001007 is a wasteful number, since it uses less digits than its factorization.

222001007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178992.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 222001007 is about 14899.6982184204. The cubic root of 222001007 is about 605.5058101804.

Adding to 222001007 its reverse (700100222), we get a palindrome (922101229).

The spelling of 222001007 in words is "two hundred twenty-two million, one thousand, seven".