1001221214 has 12 divisors (see below), whose sum is σ = 1747029024. Its totient is φ = 429094764.

The previous prime is 1001221187. The next prime is 1001221223. The reversal of 1001221214 is 4121221001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5108174 + ... + 5108369.

It is an arithmetic number, because the mean of its divisors is an integer number (145585752).

Almost surely, 2^1001221214 is an apocalyptic number.

1001221214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1001221214 is a deficient number, since it is larger than the sum of its proper divisors (745807810).

1001221214 is a wasteful number, since it uses less digits than its factorization.

1001221214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10216559 (or 10216552 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1001221214 is about 31642.0797989007. The cubic root of 1001221214 is about 1000.4069057386.

Adding to 1001221214 its reverse (4121221001), we get a palindrome (5122442215).

The spelling of 1001221214 in words is "one billion, one million, two hundred twenty-one thousand, two hundred fourteen".