222101000112121 has 4 divisors (see below), whose sum is σ = 239185692428452. Its totient is φ = 205016307795792.

The previous prime is 222101000112119. The next prime is 222101000112223. The reversal of 222101000112121 is 121211000101222.

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 146928822816400 + 75172177295721 = 12121420^2 + 8670189^2 .

It is a cyclic number.

It is not a de Polignac number, because 222101000112121 - 2¹ = 222101000112119 is a prime.

It is a super-2 number, since 2×222101000112121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222101000112095 and 222101000112104.

It is not an unprimeable number, because it can be changed into a prime (222101000115121) 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, 8542346158146 + ... + 8542346158171.

It is an arithmetic number, because the mean of its divisors is an integer number (59796423107113).

Almost surely, 2^{222101000112121} is an apocalyptic number.

It is an amenable number.

222101000112121 is a deficient number, since it is larger than the sum of its proper divisors (17084692316331).

222101000112121 is a wasteful number, since it uses less digits than its factorization.

222101000112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17084692316330.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222101000112121 its reverse (121211000101222), we get a palindrome (343312000213343).

The spelling of 222101000112121 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred twelve thousand, one hundred twenty-one".