221101201001 has 8 divisors (see below), whose sum is σ = 222271893504. Its totient is φ = 219930645280.

The previous prime is 221101200989. The next prime is 221101201019. The reversal of 221101201001 is 100102101122.

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 221101201001 - 2¹⁴ = 221101184617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221101201021) 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, 6058856 + ... + 6095238.

It is an arithmetic number, because the mean of its divisors is an integer number (27783986688).

Almost surely, 2^221101201001 is an apocalyptic number.

It is an amenable number.

221101201001 is a deficient number, since it is larger than the sum of its proper divisors (1170692503).

221101201001 is a wasteful number, since it uses less digits than its factorization.

221101201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68391.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221101201001 its reverse (100102101122), we get a palindrome (321203302123).

The spelling of 221101201001 in words is "two hundred twenty-one billion, one hundred one million, two hundred one thousand, one".