1001201022209 has 16 divisors (see below), whose sum is σ = 1079433604800. Its totient is φ = 925157766144.

The previous prime is 1001201022203. The next prime is 1001201022233. The reversal of 1001201022209 is 9022201021001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1001201022209 - 2¹⁶ = 1001200956673 is a prime.

It is a super-2 number, since 2×1001201022209² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001201022203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155177 + ... + 1423545.

It is an arithmetic number, because the mean of its divisors is an integer number (67464600300).

Almost surely, 2^{1001201022209} is an apocalyptic number.

It is an amenable number.

1001201022209 is a deficient number, since it is larger than the sum of its proper divisors (78232582591).

1001201022209 is a wasteful number, since it uses less digits than its factorization.

1001201022209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269232.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1001201022209 in words is "one trillion, one billion, two hundred one million, twenty-two thousand, two hundred nine".