21112222010201 has 8 divisors (see below), whose sum is σ = 24641620826880. Its totient is φ = 17711164968768.

The previous prime is 21112222010147. The next prime is 21112222010207. The reversal of 21112222010201 is 10201022221112.

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 21112222010201 - 2⁴² = 16714175499097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21112222010201.

It is not an unprimeable number, because it can be changed into a prime (21112222010207) 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, 32085443456 + ... + 32085444113.

It is an arithmetic number, because the mean of its divisors is an integer number (3080202603360).

Almost surely, 2^{21112222010201} is an apocalyptic number.

It is an amenable number.

21112222010201 is a deficient number, since it is larger than the sum of its proper divisors (3529398816679).

21112222010201 is an equidigital number, since it uses as much as digits as its factorization.

21112222010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64170887623.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21112222010201 its reverse (10201022221112), we get a palindrome (31313244231313).

The spelling of 21112222010201 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, ten thousand, two hundred one".