1002021222001 has 8 divisors (see below), whose sum is σ = 1046940016320. Its totient is φ = 957215148912.

The previous prime is 1002021221987. The next prime is 1002021222011. The reversal of 1002021222001 is 1002221202001.

It is a happy number.

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 1002021222001 - 2²¹ = 1002019124849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002021222011) 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, 28162131 + ... + 28197688.

It is an arithmetic number, because the mean of its divisors is an integer number (130867502040).

Almost surely, 2^{1002021222001} is an apocalyptic number.

It is an amenable number.

1002021222001 is a deficient number, since it is larger than the sum of its proper divisors (44918794319).

1002021222001 is an equidigital number, since it uses as much as digits as its factorization.

1002021222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56360615.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002021222001 its reverse (1002221202001), we get a palindrome (2004242424002).

The spelling of 1002021222001 in words is "one trillion, two billion, twenty-one million, two hundred twenty-two thousand, one".