222212011201121 has 4 divisors (see below), whose sum is σ = 222229806681792. Its totient is φ = 222194215720452.

The previous prime is 222212011201093. The next prime is 222212011201181. The reversal of 222212011201121 is 121102110212222.

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 a de Polignac number, because none of the positive numbers 2^k-222212011201121 is a prime.

It is a super-2 number, since 2×222212011201121² (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 = 222212011201093 and 222212011201102.

It is not an unprimeable number, because it can be changed into a prime (222212011201181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8897721605 + ... + 8897746578.

It is an arithmetic number, because the mean of its divisors is an integer number (55557451670448).

Almost surely, 2^{222212011201121} is an apocalyptic number.

It is an amenable number.

222212011201121 is a deficient number, since it is larger than the sum of its proper divisors (17795480671).

222212011201121 is a wasteful number, since it uses less digits than its factorization.

222212011201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17795480670.

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

Adding to 222212011201121 its reverse (121102110212222), we get a palindrome (343314121413343).

The spelling of 222212011201121 in words is "two hundred twenty-two trillion, two hundred twelve billion, eleven million, two hundred one thousand, one hundred twenty-one".