1001000022201 has 12 divisors (see below), whose sum is σ = 1447249131328. Its totient is φ = 666705558744.

The previous prime is 1001000022107. The next prime is 1001000022221. The reversal of 1001000022201 is 1022200001001.

It is not a de Polignac number, because 1001000022201 - 2²¹ = 1000997925049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001000022221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52305685 + ... + 52324818.

Almost surely, 2^{1001000022201} is an apocalyptic number.

It is an amenable number.

1001000022201 is a deficient number, since it is larger than the sum of its proper divisors (446249109127).

1001000022201 is a wasteful number, since it uses less digits than its factorization.

1001000022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104631572 (or 104631569 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1001000022201 its reverse (1022200001001), we get a palindrome (2023200023202).

The spelling of 1001000022201 in words is "one trillion, one billion, twenty-two thousand, two hundred one".