221022021012001 has 8 divisors (see below), whose sum is σ = 241115082483744. Its totient is φ = 200928984618720.

The previous prime is 221022021011963. The next prime is 221022021012011. The reversal of 221022021012001 is 100210120220122.

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 221022021012001 - 2¹⁹ = 221022020487713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221022021012011) 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, 15420621 + ... + 26073733.

It is an arithmetic number, because the mean of its divisors is an integer number (30139385310468).

Almost surely, 2^{221022021012001} is an apocalyptic number.

It is an amenable number.

221022021012001 is a deficient number, since it is larger than the sum of its proper divisors (20093061471743).

221022021012001 is a wasteful number, since it uses less digits than its factorization.

221022021012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539231.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221022021012001 its reverse (100210120220122), we get a palindrome (321232141232123).

The spelling of 221022021012001 in words is "two hundred twenty-one trillion, twenty-two billion, twenty-one million, twelve thousand, one".