1001222122 has 8 divisors (see below), whose sum is σ = 1502986176. Its totient is φ = 500226732.

The previous prime is 1001222107. The next prime is 1001222137. The reversal of 1001222122 is 2212221001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1001222107) and next prime (1001222137).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188898 + ... + 194125.

It is an arithmetic number, because the mean of its divisors is an integer number (187873272).

Almost surely, 2^1001222122 is an apocalyptic number.

1001222122 is a deficient number, since it is larger than the sum of its proper divisors (501764054).

1001222122 is a wasteful number, since it uses less digits than its factorization.

1001222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384332.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1001222122 is about 31642.0941468797. The cubic root of 1001222122 is about 1000.4072081590.

Adding to 1001222122 its reverse (2212221001), we get a palindrome (3213443123).

The spelling of 1001222122 in words is "one billion, one million, two hundred twenty-two thousand, one hundred twenty-two".