1001221622 has 16 divisors (see below), whose sum is σ = 1556113680. Its totient is φ = 482837472.

The previous prime is 1001221621. The next prime is 1001221673. The reversal of 1001221622 is 2261221001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001221622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001221621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73793 + ... + 86300.

It is an arithmetic number, because the mean of its divisors is an integer number (97257105).

Almost surely, 2^1001221622 is an apocalyptic number.

1001221622 is a deficient number, since it is larger than the sum of its proper divisors (554892058).

1001221622 is a wasteful number, since it uses less digits than its factorization.

1001221622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160207.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1001221622 is about 31642.0862460110. The cubic root of 1001221622 is about 1000.4070416280.

Adding to 1001221622 its reverse (2261221001), we get a palindrome (3262442623).

The spelling of 1001221622 in words is "one billion, one million, two hundred twenty-one thousand, six hundred twenty-two".