221010012022001 has 4 divisors (see below), whose sum is σ = 221131246259712. Its totient is φ = 220888777784292.

The previous prime is 221010012021991. The next prime is 221010012022021. The reversal of 221010012022001 is 100220210010122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221010012022001 - 2³⁰ = 221008938280177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221010012022021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60617116121 + ... + 60617119766.

It is an arithmetic number, because the mean of its divisors is an integer number (55282811564928).

Almost surely, 2^{221010012022001} is an apocalyptic number.

It is an amenable number.

221010012022001 is a deficient number, since it is larger than the sum of its proper divisors (121234237711).

221010012022001 is a wasteful number, since it uses less digits than its factorization.

221010012022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121234237710.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221010012022001 its reverse (100220210010122), we get a palindrome (321230222032123).

The spelling of 221010012022001 in words is "two hundred twenty-one trillion, ten billion, twelve million, twenty-two thousand, one".