22220222112101 has 4 divisors (see below), whose sum is σ = 23929469966892. Its totient is φ = 20510974257312.

The previous prime is 22220222112097. The next prime is 22220222112107. The reversal of 22220222112101 is 10121122202222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1811376823876 + 20408845288225 = 1345874^2 + 4517615^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220222112101 - 2² = 22220222112097 is a prime.

It is a super-3 number, since 3×22220222112101³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220222112107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854623927376 + ... + 854623927401.

It is an arithmetic number, because the mean of its divisors is an integer number (5982367491723).

Almost surely, 2^{22220222112101} is an apocalyptic number.

It is an amenable number.

22220222112101 is a deficient number, since it is larger than the sum of its proper divisors (1709247854791).

22220222112101 is a wasteful number, since it uses less digits than its factorization.

22220222112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709247854790.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22220222112101 its reverse (10121122202222), we get a palindrome (32341344314323).

The spelling of 22220222112101 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twelve thousand, one hundred one".