22221010021101 has 4 divisors (see below), whose sum is σ = 29628013361472. Its totient is φ = 14814006680732.

The previous prime is 22221010021099. The next prime is 22221010021169. The reversal of 22221010021101 is 10112001012222.

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 22221010021101 - 2¹ = 22221010021099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221010021501) 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, 3703501670181 + ... + 3703501670186.

It is an arithmetic number, because the mean of its divisors is an integer number (7407003340368).

Almost surely, 2^{22221010021101} is an apocalyptic number.

It is an amenable number.

22221010021101 is a deficient number, since it is larger than the sum of its proper divisors (7407003340371).

22221010021101 is an equidigital number, since it uses as much as digits as its factorization.

22221010021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407003340370.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22221010021101 its reverse (10112001012222), we get a palindrome (32333011033323).

The spelling of 22221010021101 in words is "twenty-two trillion, two hundred twenty-one billion, ten million, twenty-one thousand, one hundred one".