1001112002221 has 8 divisors (see below), whose sum is σ = 1006203224000. Its totient is φ = 996021385920.

The previous prime is 1001112002131. The next prime is 1001112002279. The reversal of 1001112002221 is 1222002111001.

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

It is a cyclic number.

It is not a de Polignac number, because 1001112002221 - 2¹⁵ = 1001111969453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001112002521) 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, 3371701 + ... + 3656581.

It is an arithmetic number, because the mean of its divisors is an integer number (125775403000).

Almost surely, 2^{1001112002221} is an apocalyptic number.

It is an amenable number.

1001112002221 is a deficient number, since it is larger than the sum of its proper divisors (5091221779).

1001112002221 is a wasteful number, since it uses less digits than its factorization.

1001112002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302739.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001112002221 its reverse (1222002111001), we get a palindrome (2223114113222).

The spelling of 1001112002221 in words is "one trillion, one billion, one hundred twelve million, two thousand, two hundred twenty-one".