222120111110101 has 8 divisors (see below), whose sum is σ = 222179846237208. Its totient is φ = 222060377280000.

The previous prime is 222120111110099. The next prime is 222120111110237. The reversal of 222120111110101 is 101011111021222.

It can be written as a sum of positive squares in 4 ways, for example, as 871562280625 + 221248548829476 = 933575^2 + 14874426^2 .

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 222120111110101 - 2¹ = 222120111110099 is a prime.

It is a super-2 number, since 2×222120111110101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120111110701) 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, 412362651 + ... + 412900951.

It is an arithmetic number, because the mean of its divisors is an integer number (27772480779651).

Almost surely, 2^{222120111110101} is an apocalyptic number.

It is an amenable number.

222120111110101 is a deficient number, since it is larger than the sum of its proper divisors (59735127107).

222120111110101 is a wasteful number, since it uses less digits than its factorization.

222120111110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648503.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 222120111110101 its reverse (101011111021222), we get a palindrome (323131222131323).

The spelling of 222120111110101 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred eleven million, one hundred ten thousand, one hundred one".