1001312222 has 16 divisors (see below), whose sum is σ = 1571812992. Its totient is φ = 477500760.

The previous prime is 1001312201. The next prime is 1001312237. The reversal of 1001312222 is 2222131001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001312197 and 1001312206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15404 + ... + 47327.

It is an arithmetic number, because the mean of its divisors is an integer number (98238312).

Almost surely, 2^1001312222 is an apocalyptic number.

1001312222 is a deficient number, since it is larger than the sum of its proper divisors (570500770).

1001312222 is a wasteful number, since it uses less digits than its factorization.

1001312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63103.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1001312222 is about 31643.5178512124. The cubic root of 1001312222 is about 1000.4372161475.

Adding to 1001312222 its reverse (2222131001), we get a palindrome (3223443223).

The spelling of 1001312222 in words is "one billion, one million, three hundred twelve thousand, two hundred twenty-two".