22221221112101 has 96 divisors (see below), whose sum is σ = 26455639392000. Its totient is φ = 18441494691840.

The previous prime is 22221221112071. The next prime is 22221221112109. The reversal of 22221221112101 is 10121112212222.

It is not a de Polignac number, because 22221221112101 - 2¹⁸ = 22221220849957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221221112109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84491334896 + ... + 84491335158.

It is an arithmetic number, because the mean of its divisors is an integer number (275579577000).

Almost surely, 2^{22221221112101} is an apocalyptic number.

It is an amenable number.

22221221112101 is a deficient number, since it is larger than the sum of its proper divisors (4234418279899).

22221221112101 is a wasteful number, since it uses less digits than its factorization.

22221221112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22221221112101 its reverse (10121112212222), we get a palindrome (32342333324323).

It can be divided in two parts, 22221221 and 112101, that added together give a palindrome (22333322).

The spelling of 22221221112101 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, one hundred one".